Error when attempting to sign document

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jsp91470
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Error when attempting to sign document

Post by jsp91470 » Tue Jan 31, 2012 2:31 am

I have a digital signature that I'm trying to use to sign a document. When I try to sign the document, I get this error:

Error saving document to C:\etc\etc\filename.pdf":
Error [System]: Invalid provider type specified.

We are on a Windows domain with our own CA which automatically generates client certificates. I have configured our Active Directory so that our CA is trusted by all the clients on our network. I have done this before with PDF-Xchange, using a free certificate I got from startssl.com.

Is there a particular type of certificate that is required? Why would one certificate work and another not work? The one I am trying to use also includes the private key; the one I used that did work did not have the private key.

I've attached a copy of the certificate, without the private key (I had to rename the file to get it to upload... rename it from .zip to .cer)

Thanks,

Jeff

jsp91470
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Re: Error when attempting to sign document

Post by jsp91470 » Tue Jan 31, 2012 7:19 pm

I fixed it. It had something to do with how the certificates were generated. We use Windows Server 2008 R2 Certificate Services. The certificates are deployed using Group Policy to enable autoenrollment, so every user is automatically issued a certificate. The certificates are controlled by templates. To enable autoenrollment, you select a certificate template you want and make a duplicate of it, and then customize it. When you create the duplicate, it asks you if you want to make the template compatible with Windows Server 2003 Enterprise or Windows Server 2008 Enterprise. We have Windows Server Standard, not Enterprise, but I had selected 2008 because I figured we were closer to 2008 Enterprise than 2003 Enterprise. There must be some feature of Windows Server 2008 Enterprise that creates certificates that PDF-Xchange doesn't like (and Adobe Acrobat too-- I discovered that I couldn't sign with that certificate in Acrobat X either). I deleted the template and created another, this time selecting Windows Server 2003 Enterprise. Now PDF-Xchange and Acrobat can both sign using the automatically-generated certificate.

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Paul - Tracker Supp
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Re: Error when attempting to sign document

Post by Paul - Tracker Supp » Tue Jan 31, 2012 7:41 pm

Hi jsp91470

thanks very much for the explanation - I'm sure many will benefit from your experience!

regards
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If posting files to this forum - you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded - thank you.

Best regards

Paul O'Rorke
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Re: Error when attempting to sign document

Post by Ivan - Tracker Software » Wed Feb 08, 2012 5:07 pm

Can you send us some certificates generated for both W2003 and W2008? I suspect W2008 uses SHA2-256 hash while W2003 uses SHA1.
Tracker Software (Project Director)

When attaching files to any message - please ensure they are archived and posted as a .ZIP, .RAR or .7z format - or they will not be posted - thanks.

john g Buckley
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Re: Error when attempting to sign document

Post by john g Buckley » Fri Nov 07, 2014 7:14 am

This is the only post I can find on here with regards this error message and the posts seem old? I have just started signing documents - I have pdf XCHANGE EDITOR V3 BUILD 307.1

After I choose "sign" and the file is attempted to be saved it gives the error "cant save the nnn document ", "erro [system] invalid provider type specified" - it saves the file with 0 bytes

it uses signature hash algorithm sha1

it seems that things should have moved on here .. having to ask my signature certificate support team to allow for 2003 servers seems outdated - is there new information about this?

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Will - Tracker Supp
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Re: Error when attempting to sign document

Post by Will - Tracker Supp » Fri Nov 07, 2014 4:19 pm

Hi John,

I'm not sure offhand of the status of this, given how old the topic is, but you are using a fairly old build. Please take a look at this KB article and try running the installer (below) to update to Version 5.5. Build 311 of the Editor:
http://www.tracker-software.com/knowled ... rade-Guide
http://www.tracker-software.com/PDFXVE5.zip

Cheers,
If posting files to this forum, you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded.
Thank you.

Best regards

Will Travaglini
Tracker Support (Europe)
Tracker Software Products Ltd.
http://www.tracker-software.com

flur
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Re: Error when attempting to sign document

Post by flur » Wed Apr 05, 2017 10:58 am

Hi

We came across the same error message with both 3.0 (306.1) and 6.0 (317.1) PDX-xchange editors.

Is this still a problem/unresolved bug? And the only solution continues to be to create internal certificates with 2003 compatibility mode?

Thank you

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Tracker Supp-Stefan
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Re: Error when attempting to sign document

Post by Tracker Supp-Stefan » Wed Apr 05, 2017 11:47 am

Hello flur,

We are constantly making changes to our products - and the digital signatures area is quite dynamic as new certificates and devices appear daily, so we do make changes in that area of the Editor frequently.
Please do test with build 321 and your certificates and if you still have issues - do let us know. Please also make sure to test with the Editor, as the Viewer is now no longer developed and it does not get improvements in the digital signing area!

Regards,
Stefan

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Re: Error when attempting to sign document

Post by flur » Wed Apr 05, 2017 12:34 pm

Hi!

Thank you for prompt reply


Same error occurs with 6.0 (321.0) PDF-Xchange Editor Plus.

Q: Is there some certificate structures that pdf-xchange cannot handle (extensions maybe)? Can you pinpoint what is not supported?

f.k

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Re: Error when attempting to sign document

Post by Tracker Supp-Stefan » Wed Apr 05, 2017 1:35 pm

Hello flur,

Can you please contact us via e-mail (write to support@tracker-software.com) - with the exact make and model of the certificate device - and we will try to work with you on supporting it. We do strive to support all possible types of signatures - but as I mentioned above - there are new ones appearing all the time - so we need to keep making changes to support them all :)

Cheers,
Stefan

ANI
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Re: Error when attempting to sign document

Post by ANI » Thu Apr 13, 2017 11:04 am

We are also experiencing this same problem with Editor Plus V6 build 321.0.

The certificate used is a new qualified certificate produced by the national authorities. The certificate can be used to digitally sign e.g. a Microsoft Word document, but the signature fails with PDF-XChange Editor (=> "Sign Document - Placement of the signature failed. Error [System]: Invalid provider type specified.")

I have contacted support via email about a week ago but have received no reply so far...

Hopefully this problem can be solved soon since it effectively prevents us from signing PDF documents (which is our main reason for using the product).

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