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Php / Guides / Save a document
Serialization also known as saving provides the ability to write content back to a storage medium.
Apryse SDK benefits include:
To save a PDF document.
$doc = new PDFDoc($filename); // save the document to the filesystem $doc->Save($output_filename, SDFDoc::e_linearized); // optionally save the document to a memory buffer $buffer = $doc->Save(SDFDoc::e_linearized);
Read & write a PDF file from/to memory buffer
Full source code which illustrates how to read/write a PDF document from/to memory buffer. This is useful for applications that work with dynamic PDF documents that don't need to be saved/read from a disk.
PDF document can be serialized (or saved) to a file on a disk, to a memory buffer, or to an arbitrary data stream such as
MemoryFilter or a
To save a PDF document to a file on disk, invoke its
The second argument is a bitwise disjunction of flags used as options during serialization.
Apryse SDK allows a document to be saved incrementally (see section 2.2.7 "Incremental Update" in the PDF Reference Manual). Because applications may allow users to modify PDF documents, users should not have to wait for the entire file (which can contain hundreds of pages) to be rewritten each time modifications to the document are saved. Apryse SDK allows modifications to be appended to a file, leaving the original data intact. The addendum appended when a file is incrementally updated contains only those objects that were actually added or modified. Incremental update allows an application to save modifications to a PDF document in an amount of time proportional to the size of the modification rather than the size of the file. In addition, because the original contents of the document are still present in the file, it is possible to undo saved changes by deleting one or more file updates.
Changes can be appended to an existing document using
Note that the file output name matches the input name.
Over time, PDF documents may accumulate unused objects like old updates, modifications, unused fonts, images, and so on. To trim down the file size by removing these unused objects, use the
A PDF document can also be serialized into a memory buffer as follows:
$buffer = $doc->Save(SDFDoc::e_linearized);
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