Planet PDF Forum Archive

Planet PDF ForumWowsers! This is page is old, head to the LIVE Planet PDF Forum. It features more than 10 conferences, covering everything from beginner to in-depth developer and pre-press discussions. If you wish to continue... one & two archive covers 1999-2011 (160,000 pages).

New Forum | Previous | Next | (P-PDF) Developers

Topic: Re: Signing docs (was Re: CommandHandler, why??)
Conf: (P-PDF) Developers, Msg: 58533
From: LeonardR
Date: 5/29/2002 05:33 PM

At 4:38 AM -0400 6/25/01, p-pdf-developer Listmanager wrote:
>Is it possible to insert a digital signature directly in the pdf
>file on a cos-level programming without using the digital signatures
>methods and callback functions or do I always have to initialize the
>DigSigHandlerRec structure before creating a dig.sign.
The answer depends on whether you want/need/expect your
signatures to be compatible with Adobe's - AND how much work you wish
to do.

The main thing that you gain from using the DigSig handlers
is that they will deal with providing you the appropriate object data
in a consistent way. If you wish to make your own choices as to what
data to sign (and are therefore incompatible with Acrobat Sigs) OR
you wish to reverse engineer exactly what objects get signed in what
order, then you can do certainly do either/both.

Leonard Rosenthol

Director of Software Development (215) 922-3509 (voice)
Appligent, Inc. (formerly Digital Applications) (610) 284-4233 (fax)

PGP Fingerprint: 8CC9 8878 921E C627 0BC1 15BB FC19 64A9 0016 1397

PDF In-Depth Free Product Trials Ubiquitous PDF

Debenu Aerialist

The ultimate plug-in for Adobe Acrobat. Advanced splitting, merging, stamping, bookmarking, and link...

Download free demo

Debenu PDF Tools Pro

It's simple to use and will let you preview and edit PDF files, it's a Windows application that makes...

Download free demo

Five visions of a PDF Day

In the world of PDFs or as we like to say Planet (of) PDF, a year isn't a real PDF year without an intense few days of industry knowledge sharing.

May 15, 2018
Platinum Sponsor

Search Planet PDF
more searching options...
Planet PDF Newsletter
Most Popular Articles
Featured Product

Debenu PDF Aerialist

The ultimate plug-in for Adobe Acrobat. Advanced splitting, merging, stamping, bookmarking, and link control. Take Acrobat to the next level.


Adding a PDF Stamp Comment

OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.