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Software components for data protection, secure storage and transfer

Signing PDF/A files

Also by EldoS: CallbackDisk
Create virtual disks backed by memory or custom location, expose disk images as disks and more.
#17794
Posted: 10/10/2011 02:07:18
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

I tried with 9.1.207 and error is the same:

Quote
Invalid PDF

The document does not comply with the PDF specification.


Syntax problem: Indirect object “endobj” keyword not preceded by an EOL marker
#17795
Posted: 10/10/2011 03:51:39
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

I have made one tool and found that in the signed document EOL (13 or 10)is not preceding endobj 7 times in my signed test document (i have sent it to you). On original file there are no such problems.
#17796
Posted: 10/10/2011 04:56:13
by Dmytro Bogatskyy (EldoS Corp.)

Quote
I tried with 9.1.207 and error is the same:

That's strange, I can't reproduce your error with a current build.
Please add a following line:
Code
MessageBox.Show(SBUtils.Unit.SBB_VERSION_NUMBER);

To ensure that you are running the latest build.
#17797
Posted: 10/10/2011 05:12:02
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

Yes, I can confirm that
---------------------------

---------------------------
9.1.207.0
---------------------------
OK
---------------------------

(above is copy of mbox)
#17799
Posted: 10/10/2011 06:06:09
by Dmytro Bogatskyy (EldoS Corp.)

Could you please create and attach a new signed sample document.
Are you using .Net 2.0 or 4.0 assemblies? Or other?
#17800
Posted: 10/10/2011 08:06:18
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

In attachment are both documents (not signed and signed). TinySigner is set to use NetFramework 4


[ Download ]
#17801
Posted: 10/10/2011 09:01:34
by Dmytro Bogatskyy (EldoS Corp.)

I have checked "Test document (signed).pdf" with Adobe Acrobat X Pro 10.1.0, and it reports:
Code
Standard: PDF/A-1B
ISO Name: ISO 19005-1
Status: verification succeeded
#17803
Posted: 10/10/2011 09:40:34
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

Hmmm, so basicaly might be that these online test tools are not so reliable...

I'll try to check this with Adobe.

Thank you very much for information.
#17808
Posted: 10/11/2011 05:21:10
by ingbabic  (Standard support level)
Joined: 09/27/2011
Posts: 114

Hello Dmytro

I was able to verify signed pdf, against PDF/A, with Adobe Acrobat Pro and the test passed ok. Even after signing document with PADES, Adobe was again verified that document is still PDF/A conformant. It's very good news for me :).

Thanks for your support.
Also by EldoS: CallbackFilter
A component to monitor and control disk activity, track file and directory operations (create, read, write, rename etc.), alter file data, encrypt files, create virtual files.

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