am 93134ce8: Merge "Save to a PDF file should look like print preview." into lmp-mr1-dev

* commit '93134ce87e7b33e599c9ef9ed8b19ec2556ca8f1':
  Save to a PDF file should look like print preview.

core/jni/android/graphics/pdf/PdfEditor.cpp

@@ -19,6 +19,9 @@
 #include "fpdfview.h"
 #include "fpdfedit.h"
 #include "fpdfsave.h"
+#include "fsdk_rendercontext.h"
+#include "fpdf_transformpage.h"
+#include "SkMatrix.h"
 
 #include <android_runtime/AndroidRuntime.h>
 #include <vector>
@@ -29,6 +32,20 @@
 
 namespace android {
 
+enum PageBox {PAGE_BOX_MEDIA, PAGE_BOX_CROP};
+
+static struct {
+    jfieldID x;
+    jfieldID y;
+} gPointClassInfo;
+
+static struct {
+    jfieldID left;
+    jfieldID top;
+    jfieldID right;
+    jfieldID bottom;
+} gRectClassInfo;
+
 static Mutex sLock;
 
 static int sUnmatchedInitRequestCount = 0;
@@ -144,18 +161,201 @@ static void nativeWrite(JNIEnv* env, jclass thiz, jlong documentPtr, jint fd) {
     }
 }
 
+static void nativeSetTransformAndClip(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        jlong transformPtr, jint clipLeft, jint clipTop, jint clipRight, jint clipBottom) {
+    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);
+
+    CPDF_Page* page = (CPDF_Page*) FPDF_LoadPage(document, pageIndex);
+    if (!page) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                "cannot open page");
+        return;
+    }
+
+    double width = 0;
+    double height = 0;
+
+    const int result = FPDF_GetPageSizeByIndex(document, pageIndex, &width, &height);
+    if (!result) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                    "cannot get page size");
+        return;
+    }
+
+    CFX_AffineMatrix matrix;
+
+    SkMatrix* skTransform = reinterpret_cast<SkMatrix*>(transformPtr);
+
+    SkScalar transformValues[6];
+    skTransform->asAffine(transformValues);
+
+    // PDF's coordinate system origin is left-bottom while in graphics it
+    // is the top-left. So, translate the PDF coordinates to ours.
+    matrix.Set(1, 0, 0, -1, 0, page->GetPageHeight());
+
+    // Apply the transformation what was created in our coordinates.
+    matrix.Concat(transformValues[SkMatrix::kAScaleX], transformValues[SkMatrix::kASkewY],
+            transformValues[SkMatrix::kASkewX], transformValues[SkMatrix::kAScaleY],
+            transformValues[SkMatrix::kATransX], transformValues[SkMatrix::kATransY]);
+
+    // Translate the result back to PDF coordinates.
+    matrix.Concat(1, 0, 0, -1, 0, page->GetPageHeight());
+
+    FS_MATRIX transform = {matrix.a, matrix.b, matrix.c, matrix.d, matrix.e, matrix.f};
+    FS_RECTF clip = {(float) clipLeft, (float) clipTop, (float) clipRight, (float) clipBottom};
+
+    FPDFPage_TransFormWithClip(page, &transform, &clip);
+
+    FPDF_ClosePage(page);
+}
+
+static void nativeGetPageSize(JNIEnv* env, jclass thiz, jlong documentPtr,
+        jint pageIndex, jobject outSize) {
+    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);
+
+    FPDF_PAGE page = FPDF_LoadPage(document, pageIndex);
+    if (!page) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                "cannot open page");
+        return;
+    }
+
+    double width = 0;
+    double height = 0;
+
+    const int result = FPDF_GetPageSizeByIndex(document, pageIndex, &width, &height);
+    if (!result) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                    "cannot get page size");
+        return;
+    }
+
+    env->SetIntField(outSize, gPointClassInfo.x, width);
+    env->SetIntField(outSize, gPointClassInfo.y, height);
+
+    FPDF_ClosePage(page);
+}
+
+static jboolean nativeScaleForPrinting(JNIEnv* env, jclass thiz, jlong documentPtr) {
+    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);
+    FPDF_BOOL success = FPDF_VIEWERREF_GetPrintScaling(document);
+    return success ? JNI_TRUE : JNI_FALSE;
+}
+
+static bool nativeGetPageBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        PageBox pageBox, jobject outBox) {
+    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);
+
+    FPDF_PAGE page = FPDF_LoadPage(document, pageIndex);
+    if (!page) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                "cannot open page");
+        return false;
+    }
+
+    float left;
+    float top;
+    float right;
+    float bottom;
+
+    const FPDF_BOOL success = (pageBox == PAGE_BOX_MEDIA)
+        ? FPDFPage_GetMediaBox(page, &left, &top, &right, &bottom)
+        : FPDFPage_GetCropBox(page, &left, &top, &right, &bottom);
+
+    FPDF_ClosePage(page);
+
+    if (!success) {
+        return false;
+    }
+
+    env->SetIntField(outBox, gRectClassInfo.left, (int) left);
+    env->SetIntField(outBox, gRectClassInfo.top, (int) top);
+    env->SetIntField(outBox, gRectClassInfo.right, (int) right);
+    env->SetIntField(outBox, gRectClassInfo.bottom, (int) bottom);
+
+    return true;
+}
+
+static jboolean nativeGetPageMediaBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        jobject outMediaBox) {
+    const bool success = nativeGetPageBox(env, thiz, documentPtr, pageIndex, PAGE_BOX_MEDIA,
+            outMediaBox);
+    return success ? JNI_TRUE : JNI_FALSE;
+}
+
+static jboolean nativeGetPageCropBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        jobject outMediaBox) {
+    const bool success = nativeGetPageBox(env, thiz, documentPtr, pageIndex, PAGE_BOX_CROP,
+         outMediaBox);
+    return success ? JNI_TRUE : JNI_FALSE;
+}
+
+static void nativeSetPageBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        PageBox pageBox, jobject box) {
+    FPDF_DOCUMENT document = reinterpret_cast<FPDF_DOCUMENT>(documentPtr);
+
+    FPDF_PAGE page = FPDF_LoadPage(document, pageIndex);
+    if (!page) {
+        jniThrowException(env, "java/lang/IllegalStateException",
+                "cannot open page");
+        return;
+    }
+
+    const int left = env->GetIntField(box, gRectClassInfo.left);
+    const int top = env->GetIntField(box, gRectClassInfo.top);
+    const int right = env->GetIntField(box, gRectClassInfo.right);
+    const int bottom = env->GetIntField(box, gRectClassInfo.bottom);
+
+    if (pageBox == PAGE_BOX_MEDIA) {
+        FPDFPage_SetMediaBox(page, left, top, right, bottom);
+    } else {
+        FPDFPage_SetCropBox(page, left, top, right, bottom);
+    }
+
+    FPDF_ClosePage(page);
+}
+
+static void nativeSetPageMediaBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        jobject mediaBox) {
+    nativeSetPageBox(env, thiz, documentPtr, pageIndex, PAGE_BOX_MEDIA, mediaBox);
+}
+
+static void nativeSetPageCropBox(JNIEnv* env, jclass thiz, jlong documentPtr, jint pageIndex,
+        jobject mediaBox) {
+    nativeSetPageBox(env, thiz, documentPtr, pageIndex, PAGE_BOX_CROP, mediaBox);
+}
+
 static JNINativeMethod gPdfEditor_Methods[] = {
     {"nativeOpen", "(IJ)J", (void*) nativeOpen},
     {"nativeClose", "(J)V", (void*) nativeClose},
     {"nativeGetPageCount", "(J)I", (void*) nativeGetPageCount},
     {"nativeRemovePage", "(JI)I", (void*) nativeRemovePage},
-    {"nativeWrite", "(JI)V", (void*) nativeWrite}
+    {"nativeWrite", "(JI)V", (void*) nativeWrite},
+    {"nativeSetTransformAndClip", "(JIJIIII)V", (void*) nativeSetTransformAndClip},
+    {"nativeGetPageSize", "(JILandroid/graphics/Point;)V", (void*) nativeGetPageSize},
+    {"nativeScaleForPrinting", "(J)Z", (void*) nativeScaleForPrinting},
+    {"nativeGetPageMediaBox", "(JILandroid/graphics/Rect;)Z", (void*) nativeGetPageMediaBox},
+    {"nativeSetPageMediaBox", "(JILandroid/graphics/Rect;)V", (void*) nativeSetPageMediaBox},
+    {"nativeGetPageCropBox", "(JILandroid/graphics/Rect;)Z", (void*) nativeGetPageCropBox},
+    {"nativeSetPageCropBox", "(JILandroid/graphics/Rect;)V", (void*) nativeSetPageCropBox}
 };
 
 int register_android_graphics_pdf_PdfEditor(JNIEnv* env) {
-    return android::AndroidRuntime::registerNativeMethods(
+    const int result = android::AndroidRuntime::registerNativeMethods(
             env, "android/graphics/pdf/PdfEditor", gPdfEditor_Methods,
             NELEM(gPdfEditor_Methods));
+
+    jclass pointClass = env->FindClass("android/graphics/Point");
+    gPointClassInfo.x = env->GetFieldID(pointClass, "x", "I");
+    gPointClassInfo.y = env->GetFieldID(pointClass, "y", "I");
+
+    jclass rectClass = env->FindClass("android/graphics/Rect");
+    gRectClassInfo.left = env->GetFieldID(rectClass, "left", "I");
+    gRectClassInfo.top = env->GetFieldID(rectClass, "top", "I");
+    gRectClassInfo.right = env->GetFieldID(rectClass, "right", "I");
+    gRectClassInfo.bottom = env->GetFieldID(rectClass, "bottom", "I");
+
+    return result;
 };
 
 };

graphics/java/android/graphics/pdf/PdfEditor.java

@@ -17,6 +17,10 @@
 package android.graphics.pdf;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.graphics.Matrix;
+import android.graphics.Point;
+import android.graphics.Rect;
 import android.os.ParcelFileDescriptor;
 import android.system.ErrnoException;
 import android.system.OsConstants;
@@ -97,6 +101,109 @@ public final class PdfEditor {
         mPageCount = nativeRemovePage(mNativeDocument, pageIndex);
     }
 
+    /**
+     * Sets a transformation and clip for a given page. The transformation matrix if
+     * non-null must be affine as per {@link android.graphics.Matrix#isAffine()}. If
+     * the clip is null, then no clipping is performed.
+     *
+     * @param pageIndex The page whose transform to set.
+     * @param transform The transformation to apply.
+     * @param clip The clip to apply.
+     */
+    public void setTransformAndClip(int pageIndex, @Nullable Matrix transform,
+            @Nullable Rect clip) {
+        throwIfClosed();
+        throwIfPageNotInDocument(pageIndex);
+        throwIfNotNullAndNotAfine(transform);
+        if (transform == null) {
+            transform = Matrix.IDENTITY_MATRIX;
+        }
+        if (clip == null) {
+            Point size = new Point();
+            getPageSize(pageIndex, size);
+            nativeSetTransformAndClip(mNativeDocument, pageIndex, transform.native_instance,
+                    0, 0, size.x, size.y);
+        } else {
+            nativeSetTransformAndClip(mNativeDocument, pageIndex, transform.native_instance,
+                    clip.left, clip.top, clip.right, clip.bottom);
+        }
+    }
+
+    /**
+     * Gets the size of a given page in mils (1/72").
+     *
+     * @param pageIndex The page index.
+     * @param outSize The size output.
+     */
+    public void getPageSize(int pageIndex, @NonNull Point outSize) {
+        throwIfClosed();
+        throwIfOutSizeNull(outSize);
+        throwIfPageNotInDocument(pageIndex);
+        nativeGetPageSize(mNativeDocument, pageIndex, outSize);
+    }
+
+    /**
+     * Gets the media box of a given page in mils (1/72").
+     *
+     * @param pageIndex The page index.
+     * @param outMediaBox The media box output.
+     */
+    public boolean getPageMediaBox(int pageIndex, @NonNull Rect outMediaBox) {
+        throwIfClosed();
+        throwIfOutMediaBoxNull(outMediaBox);
+        throwIfPageNotInDocument(pageIndex);
+        return nativeGetPageMediaBox(mNativeDocument, pageIndex, outMediaBox);
+    }
+
+    /**
+     * Sets the media box of a given page in mils (1/72").
+     *
+     * @param pageIndex The page index.
+     * @param mediaBox The media box.
+     */
+    public void setPageMediaBox(int pageIndex, @NonNull Rect mediaBox) {
+        throwIfClosed();
+        throwIfMediaBoxNull(mediaBox);
+        throwIfPageNotInDocument(pageIndex);
+        nativeSetPageMediaBox(mNativeDocument, pageIndex, mediaBox);
+    }
+
+    /**
+     * Gets the crop box of a given page in mils (1/72").
+     *
+     * @param pageIndex The page index.
+     * @param outCropBox The crop box output.
+     */
+    public boolean getPageCropBox(int pageIndex, @NonNull Rect outCropBox) {
+        throwIfClosed();
+        throwIfOutCropBoxNull(outCropBox);
+        throwIfPageNotInDocument(pageIndex);
+        return nativeGetPageCropBox(mNativeDocument, pageIndex, outCropBox);
+    }
+
+    /**
+     * Sets the crop box of a given page in mils (1/72").
+     *
+     * @param pageIndex The page index.
+     * @param cropBox The crop box.
+     */
+    public void setPageCropBox(int pageIndex, @NonNull Rect cropBox) {
+        throwIfClosed();
+        throwIfCropBoxNull(cropBox);
+        throwIfPageNotInDocument(pageIndex);
+        nativeSetPageCropBox(mNativeDocument, pageIndex, cropBox);
+    }
+
+    /**
+     * Gets whether the document prefers to be scaled for printing.
+     *
+     * @return Whether to scale the document.
+     */
+    public boolean shouldScaleForPrinting() {
+        throwIfClosed();
+        return nativeScaleForPrinting(mNativeDocument);
+    }
+
     /**
      * Writes the PDF file to the provided destination.
      * <p>
@@ -154,9 +261,57 @@ public final class PdfEditor {
         }
     }
 
+    private void throwIfNotNullAndNotAfine(Matrix matrix) {
+        if (matrix != null && !matrix.isAffine()) {
+            throw new IllegalStateException("Matrix must be afine");
+        }
+    }
+
+    private void throwIfOutSizeNull(Point outSize) {
+        if (outSize == null) {
+            throw new NullPointerException("outSize cannot be null");
+        }
+    }
+
+    private void throwIfOutMediaBoxNull(Rect outMediaBox) {
+        if (outMediaBox == null) {
+            throw new NullPointerException("outMediaBox cannot be null");
+        }
+    }
+
+    private void throwIfMediaBoxNull(Rect mediaBox) {
+        if (mediaBox == null) {
+            throw new NullPointerException("mediaBox cannot be null");
+        }
+    }
+
+    private void throwIfOutCropBoxNull(Rect outCropBox) {
+        if (outCropBox == null) {
+            throw new NullPointerException("outCropBox cannot be null");
+        }
+    }
+
+    private void throwIfCropBoxNull(Rect cropBox) {
+        if (cropBox == null) {
+            throw new NullPointerException("cropBox cannot be null");
+        }
+    }
+
     private static native long nativeOpen(int fd, long size);
     private static native void nativeClose(long documentPtr);
     private static native int nativeGetPageCount(long documentPtr);
     private static native int nativeRemovePage(long documentPtr, int pageIndex);
     private static native void nativeWrite(long documentPtr, int fd);
+    private static native void nativeSetTransformAndClip(long documentPtr, int pageIndex,
+            long transformPtr, int clipLeft, int clipTop, int clipRight, int clipBottom);
+    private static native void nativeGetPageSize(long documentPtr, int pageIndex, Point outSize);
+    private static native boolean nativeGetPageMediaBox(long documentPtr, int pageIndex,
+            Rect outMediaBox);
+    private static native void nativeSetPageMediaBox(long documentPtr, int pageIndex,
+            Rect mediaBox);
+    private static native boolean nativeGetPageCropBox(long documentPtr, int pageIndex,
+            Rect outMediaBox);
+    private static native void nativeSetPageCropBox(long documentPtr, int pageIndex,
+            Rect mediaBox);
+    private static native boolean nativeScaleForPrinting(long documentPtr);
 }

packages/PrintSpooler/src/com/android/printspooler/renderer/IPdfEditor.aidl

@@ -18,6 +18,7 @@ package com.android.printspooler.renderer;
 
 import android.os.ParcelFileDescriptor;
 import android.print.PageRange;
+import android.print.PrintAttributes;
 
 /**
  * Interface for communication with a remote pdf editor.
@@ -25,6 +26,7 @@ import android.print.PageRange;
 interface IPdfEditor {
     int openDocument(in ParcelFileDescriptor source);
     void removePages(in PageRange[] pages);
+    void applyPrintAttributes(in PrintAttributes attributes);
     void write(in ParcelFileDescriptor destination);
     void closeDocument();
 }

packages/PrintSpooler/src/com/android/printspooler/renderer/PdfManipulationService.java

@@ -87,7 +87,7 @@ public final class PdfManipulationService extends Service {
                     }
                     mRenderer = new PdfRenderer(source);
                     return mRenderer.getPageCount();
-                } catch (IOException|IllegalStateException e) {
+                } catch (IOException | IllegalStateException e) {
                     IoUtils.closeQuietly(source);
                     Log.e(LOG_TAG, "Cannot open file", e);
                     return MALFORMED_PDF_FILE_ERROR;
@@ -217,7 +217,7 @@ public final class PdfManipulationService extends Service {
                     }
                     mEditor = new PdfEditor(source);
                     return mEditor.getPageCount();
-                } catch (IOException|IllegalStateException e) {
+                } catch (IOException | IllegalStateException e) {
                     IoUtils.closeQuietly(source);
                     Log.e(LOG_TAG, "Cannot open file", e);
                     throw new RemoteException(e.toString());
@@ -245,6 +245,111 @@ public final class PdfManipulationService extends Service {
             }
         }
 
+        @Override
+        public void applyPrintAttributes(PrintAttributes attributes) {
+            synchronized (mLock) {
+                throwIfNotOpened();
+                if (DEBUG) {
+                    Log.i(LOG_TAG, "applyPrintAttributes()");
+                }
+
+                Rect mediaBox = new Rect();
+                Rect cropBox = new Rect();
+                Matrix transform = new Matrix();
+
+                final boolean contentPortrait = attributes.getMediaSize().isPortrait();
+
+                final boolean layoutDirectionRtl = getResources().getConfiguration()
+                        .getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+
+                // We do not want to rotate the media box, so take into account orientation.
+                final int dstWidthPts = contentPortrait
+                        ? pointsFromMils(attributes.getMediaSize().getWidthMils())
+                        : pointsFromMils(attributes.getMediaSize().getHeightMils());
+                final int dstHeightPts = contentPortrait
+                        ? pointsFromMils(attributes.getMediaSize().getHeightMils())
+                        : pointsFromMils(attributes.getMediaSize().getWidthMils());
+
+                final boolean scaleForPrinting = mEditor.shouldScaleForPrinting();
+
+                final int pageCount = mEditor.getPageCount();
+                for (int i = 0; i < pageCount; i++) {
+                    if (!mEditor.getPageMediaBox(i, mediaBox)) {
+                        Log.e(LOG_TAG, "Malformed PDF file");
+                        return;
+                    }
+
+                    final int srcWidthPts = mediaBox.width();
+                    final int srcHeightPts = mediaBox.height();
+
+                    // Update the media box with the desired size.
+                    mediaBox.right = dstWidthPts;
+                    mediaBox.bottom = dstHeightPts;
+                    mEditor.setPageMediaBox(i, mediaBox);
+
+                    // Make sure content is top-left after media box resize.
+                    transform.setTranslate(0, srcHeightPts - dstHeightPts);
+
+                    // Rotate the content if in landscape.
+                    if (!contentPortrait) {
+                        transform.postRotate(270);
+                        transform.postTranslate(0, dstHeightPts);
+                    }
+
+                    // Scale the content if document allows it.
+                    final float scale;
+                    if (scaleForPrinting) {
+                        if (contentPortrait) {
+                            scale = Math.min((float) dstWidthPts / srcWidthPts,
+                                    (float) dstHeightPts / srcHeightPts);
+                            transform.postScale(scale, scale);
+                        } else {
+                            scale = Math.min((float) dstWidthPts / srcHeightPts,
+                                    (float) dstHeightPts / srcWidthPts);
+                            transform.postScale(scale, scale, mediaBox.left, mediaBox.bottom);
+                        }
+                    } else {
+                        scale = 1.0f;
+                    }
+
+                    // Update the crop box relatively to the media box change, if needed.
+                    if (mEditor.getPageCropBox(i, cropBox)) {
+                        cropBox.left = (int) (cropBox.left * scale + 0.5f);
+                        cropBox.top = (int) (cropBox.top * scale + 0.5f);
+                        cropBox.right = (int) (cropBox.right * scale + 0.5f);
+                        cropBox.bottom = (int) (cropBox.bottom * scale + 0.5f);
+                        cropBox.intersect(mediaBox);
+                        mEditor.setPageCropBox(i, cropBox);
+                    }
+
+                    // If in RTL mode put the content in the logical top-right corner.
+                    if (layoutDirectionRtl) {
+                        final float dx = contentPortrait
+                                ? dstWidthPts - (int) (srcWidthPts * scale + 0.5f) : 0;
+                        final float dy = contentPortrait
+                                ? 0 : - (dstHeightPts - (int) (srcWidthPts * scale + 0.5f));
+                        transform.postTranslate(dx, dy);
+                    }
+
+                    // Adjust the physical margins if needed.
+                    Margins minMargins = attributes.getMinMargins();
+                    final int paddingLeftPts = pointsFromMils(minMargins.getLeftMils());
+                    final int paddingTopPts = pointsFromMils(minMargins.getTopMils());
+                    final int paddingRightPts = pointsFromMils(minMargins.getRightMils());
+                    final int paddingBottomPts = pointsFromMils(minMargins.getBottomMils());
+
+                    Rect clip = new Rect(mediaBox);
+                    clip.left += paddingLeftPts;
+                    clip.top += paddingTopPts;
+                    clip.right -= paddingRightPts;
+                    clip.bottom -= paddingBottomPts;
+
+                    // Apply the accumulated transforms.
+                    mEditor.setTransformAndClip(i, transform, clip);
+                }
+            }
+        }
+
         @Override
         public void write(ParcelFileDescriptor destination) throws RemoteException {
             synchronized (mLock) {

packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java

@@ -592,7 +592,7 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
             mDestinationSpinner.post(new Runnable() {
                 @Override
                 public void run() {
-                    shredPagesAndFinish(uri);
+                    transformDocumentAndFinish(uri);
                 }
             });
         } else if (resultCode == RESULT_CANCELED) {
@@ -922,7 +922,7 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
         if (mCurrentPrinter == mDestinationSpinnerAdapter.getPdfPrinter()) {
             startCreateDocumentActivity();
         } else {
-            shredPagesAndFinish(null);
+            transformDocumentAndFinish(null);
         }
     }
 
@@ -1597,8 +1597,11 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
         return true;
     }
 
-    private void shredPagesAndFinish(final Uri writeToUri) {
-        new PageShredder(this, mPrintJob, mFileProvider, new Runnable() {
+    private void transformDocumentAndFinish(final Uri writeToUri) {
+        // If saving to PDF, apply the attibutes as we are acting as a print service.
+        PrintAttributes attributes = mDestinationSpinnerAdapter.getPdfPrinter() == mCurrentPrinter
+                ?  mPrintJob.getAttributes() : null;
+        new DocumentTransformer(this, mPrintJob, mFileProvider, attributes, new Runnable() {
             @Override
             public void run() {
                 if (writeToUri != null) {
@@ -1606,7 +1609,7 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
                 }
                 doFinish();
             }
-        }).shred();
+        }).transform();
     }
 
     private void doFinish() {
@@ -2329,7 +2332,7 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
         }
     }
 
-    private static final class PageShredder implements ServiceConnection {
+    private static final class DocumentTransformer implements ServiceConnection {
         private static final String TEMP_FILE_PREFIX = "print_job";
         private static final String TEMP_FILE_EXTENSION = ".pdf";
 
@@ -2341,20 +2344,24 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
 
         private final PageRange[] mPagesToShred;
 
+        private final PrintAttributes mAttributesToApply;
+
         private final Runnable mCallback;
 
-        public PageShredder(Context context, PrintJobInfo printJob,
-                MutexFileProvider fileProvider, Runnable callback) {
+        public DocumentTransformer(Context context, PrintJobInfo printJob,
+                MutexFileProvider fileProvider, PrintAttributes attributes,
+                Runnable callback) {
             mContext = context;
             mPrintJob = printJob;
             mFileProvider = fileProvider;
             mCallback = callback;
             mPagesToShred = computePagesToShred(mPrintJob);
+            mAttributesToApply = attributes;
         }
 
-        public void shred() {
+        public void transform() {
             // If we have only the pages we want, done.
-            if (mPagesToShred.length <= 0) {
+            if (mPagesToShred.length <= 0 && mAttributesToApply == null) {
                 mCallback.run();
                 return;
             }
@@ -2376,14 +2383,14 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
                     // final and this code is the last one to touch
                     // them as shredding is the very last step, so the
                     // UI is not interactive at this point.
-                    shredPages(editor);
+                    doTransform(editor);
                     updatePrintJob();
                     return null;
                 }
 
                 @Override
                 protected void onPostExecute(Void aVoid) {
-                    mContext.unbindService(PageShredder.this);
+                    mContext.unbindService(DocumentTransformer.this);
                     mCallback.run();
                 }
             }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
@@ -2394,7 +2401,7 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
             /* do nothing */
         }
 
-        private void shredPages(IPdfEditor editor) {
+        private void doTransform(IPdfEditor editor) {
             File tempFile = null;
             ParcelFileDescriptor src = null;
             ParcelFileDescriptor dst = null;
@@ -2413,6 +2420,11 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
                 // Drop the pages.
                 editor.removePages(mPagesToShred);
 
+                // Apply print attributes if needed.
+                if (mAttributesToApply != null) {
+                    editor.applyPrintAttributes(mAttributesToApply);
+                }
+
                 // Write the modified PDF to a temp file.
                 tempFile = File.createTempFile(TEMP_FILE_PREFIX, TEMP_FILE_EXTENSION,
                         mContext.getCacheDir());