GetDocumentRevisionsComplete

Digital signatures

Description

Reports whether the whole revision history of a document was recoverable.

Syntax

Delphi

Function TPDFlib.GetDocumentRevisionsComplete(Const InputFile, Password: WideString): Integer;

Parameters

InputFile	The document to inspect.
Password	The password to open it, or an empty string.

Return values

1	The cross-reference chain was followed all the way back, so the revision list is the whole history.
0	It was not, or the file could not be read.

Remarks

A chain that is broken, cyclic, or longer than the reader will follow leaves the oldest updates unseen. Every figure from GetDocumentRevisionCount and the indices used by the other revision functions are then a lower bound rather than an answer, and a conclusion drawn from them about what a signature covers is not safe. Check this before treating a revision analysis as final.