OpenFromBLOB
IPDFDocument4 :: General document management :: Common

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This method opens an existing PDF document from a BLOB (binary large object), reads and parses its contents.

Syntax

HRESULT OpenFromBLOB (
VARIANT* document,
BSTR password
)
Parameters
document
Document buffer (binary data)

password
String containing the password

Return value
If successful, this method returns S_OK. If it fails, this method should return one of the error values.

Remarks

This method clears all internal data before opening a document. If you want to save a previously created document, call SaveToFile or GetBuffer first.

When the document is opened, all of its properties (Author, Producer, Creator, Title, Subject and Keywords) are saved. You can change them later as needed.

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Reference