public final class PdfEditor extends Object
Constructor and Description |
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PdfEditor(ParcelFileDescriptor input)
Creates a new instance.
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Modifier and Type | Method and Description |
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void |
close()
Closes this editor.
|
protected void |
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
int |
getPageCount()
Gets the number of pages in the document.
|
boolean |
getPageCropBox(int pageIndex,
Rect outCropBox)
Gets the crop box of a given page in mils (1/72").
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boolean |
getPageMediaBox(int pageIndex,
Rect outMediaBox)
Gets the media box of a given page in mils (1/72").
|
void |
getPageSize(int pageIndex,
Point outSize)
Gets the size of a given page in mils (1/72").
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void |
removePage(int pageIndex)
Removes the page with a given index.
|
void |
setPageCropBox(int pageIndex,
Rect cropBox)
Sets the crop box of a given page in mils (1/72").
|
void |
setPageMediaBox(int pageIndex,
Rect mediaBox)
Sets the media box of a given page in mils (1/72").
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void |
setTransformAndClip(int pageIndex,
Matrix transform,
Rect clip)
Sets a transformation and clip for a given page.
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boolean |
shouldScaleForPrinting()
Gets whether the document prefers to be scaled for printing.
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void |
write(ParcelFileDescriptor output)
Writes the PDF file to the provided destination.
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public PdfEditor(ParcelFileDescriptor input) throws IOException
Note: The provided file descriptor must be seekable,
i.e. its data being randomly accessed, e.g. pointing to a file. After finishing
with this class you must call close()
.
Note: This class takes ownership of the passed in file descriptor and is responsible for closing it when the editor is closed.
input
- Seekable file descriptor to read from.IOException
- If an error occurs while reading the file.SecurityException
- If the file requires a password or
the security scheme is not supported.close()
public int getPageCount()
public void removePage(int pageIndex)
pageIndex
- The page to remove.public void setTransformAndClip(int pageIndex, Matrix transform, Rect clip)
Matrix.isAffine()
. If
the clip is null, then no clipping is performed.pageIndex
- The page whose transform to set.transform
- The transformation to apply.clip
- The clip to apply.public void getPageSize(int pageIndex, Point outSize)
pageIndex
- The page index.outSize
- The size output.public boolean getPageMediaBox(int pageIndex, Rect outMediaBox)
pageIndex
- The page index.outMediaBox
- The media box output.public void setPageMediaBox(int pageIndex, Rect mediaBox)
pageIndex
- The page index.mediaBox
- The media box.public boolean getPageCropBox(int pageIndex, Rect outCropBox)
pageIndex
- The page index.outCropBox
- The crop box output.public void setPageCropBox(int pageIndex, Rect cropBox)
pageIndex
- The page index.cropBox
- The crop box.public boolean shouldScaleForPrinting()
public void write(ParcelFileDescriptor output) throws IOException
Note: This method takes ownership of the passed in file descriptor and is responsible for closing it when writing completes.
output
- The destination.IOException
public void close()
protected void finalize() throws Throwable
Object
finalize
method to dispose of
system resources or to perform other cleanup.
The general contract of finalize
is that it is invoked
if and when the JavaTM virtual
machine has determined that there is no longer any
means by which this object can be accessed by any thread that has
not yet died, except as a result of an action taken by the
finalization of some other object or class which is ready to be
finalized. The finalize
method may take any action, including
making this object available again to other threads; the usual purpose
of finalize
, however, is to perform cleanup actions before
the object is irrevocably discarded. For example, the finalize method
for an object that represents an input/output connection might perform
explicit I/O transactions to break the connection before the object is
permanently discarded.
The finalize
method of class Object
performs no
special action; it simply returns normally. Subclasses of
Object
may override this definition.
The Java programming language does not guarantee which thread will
invoke the finalize
method for any given object. It is
guaranteed, however, that the thread that invokes finalize will not
be holding any user-visible synchronization locks when finalize is
invoked. If an uncaught exception is thrown by the finalize method,
the exception is ignored and finalization of that object terminates.
After the finalize
method has been invoked for an object, no
further action is taken until the Java virtual machine has again
determined that there is no longer any means by which this object can
be accessed by any thread that has not yet died, including possible
actions by other objects or classes which are ready to be finalized,
at which point the object may be discarded.
The finalize
method is never invoked more than once by a Java
virtual machine for any given object.
Any exception thrown by the finalize
method causes
the finalization of this object to be halted, but is otherwise
ignored.