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  • mimosinnet Posted 2018-09-06
    PortableSigner works with IcedTea 3.8 (icedtea-bin-8). This is a small and efficient program to sign pdfs. Apart from saving the certificate in a pkcs12 format file, as suggested by michaelash, no further configuration is needed when used in Gentoo Linux. Excellent utility.
  • birnbacs Posted 2013-11-27
    Nice lightweight tool. Requires quaqua (libquaqua64.dylib) for proper look and usability on Mac OS. Works only on PKCS12 certificates Uses fixed hash algorithm (SHA1?) Pros: * supports including a picture (logo) * supports appending a page for signature information so that the original document remains readable * supports different languages for signature Cons: * printed information spacious and not scalable * no TLS (trusted time server) support (biggest problem to me)
  • michaelash Edited 2013-11-10
    PortableSigner fills an important role for do-it-yourself security certificate signing of pdf files. My basic workflow is to produce a pdf file with LaTeX (pdfLaTeX) and then to sign the pdf file with PortableSigner. I had some trouble getting a Signature File in pkcs12 (p12) format. I used CAcert.org ("Free Digital Certificates for Everyone") and was able to save a personal certificate to my Firefox browser. (I couldn't figure out how to do this in Chrome). I was then able to export my certificate from Firefox as a pkcs12 format file (with a .p12 extention) from Firefox: Edit -> Preferences -> Advanced -> Certificates -> View Certificates -> Your Certificates -> Backup. This file, which I saved as my.p12 serves as the Signature File input for PortableSigner. (I was not able to convert my.crt to P12 format using openssl but this is supposed to be a straightforward alternative. Tips appreciated.) I also downloaded the Root Certificate (root.crt) from CAcert.org. Because Acrobat doesn't automatically recognize digital signatures from CAcert.org, I had to go to Document -> Manage Trusted Identities -> Add Contact and then select the Root Certificate root.crt. I would be grateful for more documentation. Thank you very much PortableSigner.
    2 users found this review helpful.
  • diegrossoitty Posted 2013-02-09
    Very necessary thing
  • oid-3778774 Posted 2012-03-19
    It does exactly what it says it does, and we have it in our testing environment about to go into production. Thanks for the great software!
  • m_ueberall Posted 2011-01-21
    Very handy indeed!