297 results found

1. Client Side Request Injection

   Client Side Request Injection

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   0 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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2. Support symmetric curve signature / PSS padding validation

   Currently the PDF signature routines of Acrobat fail when using certain certificates. As an SecSigner employee explains, this may be due to symmetric curve crypt algorithms or using PSS padding, cf. https://seccommerce.com/anforderungen-an-den-secsigner-im-rahmen-von-etsi/ (in German)

   E.g. current PDF files by amazon.de result in the following error (German Acrobat DC installation, no pending updates):

   Fehler bei Unterschriftsprüfung.

   Bei der Prüfung ist ein Fehler aufgetreten:

   Interner kryptografischer Bibliotheksfehler.
   Fehlercode: 0x2726

   4 votes

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   Need Info  ·  4 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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3. Restrict editing/copying not working (when allowing printing)

   The feature "Restrict editing/copying" under Permissions not working when allowing printing. This is a problem as I need to send documents where people can read/print them but shouldn't be able to copy/edit the text to protect our intelectual property as much as possible.
   I have worked with the Adobe support team and they have acknowledged the bug and asked me to detail it here. Please include a fix in your next release, thanks.

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4. streamline digital signing

   It takes too many clicks to digitally sign forms with signature blocks: 1 click to active to signature box, 1 to select the digital ID, 1 to sign, 1 to save, and 1 to replace the file with the signed version. I frequently sign forms with 2-4 signature fields and this gets tedious. Two clicks would be plenty.

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   Resolved  ·  1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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5. Add Digital Initials image

   Add ability to Digital Initials of using an image file instead, JUST like for Signature, please.

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   Need Info  ·  1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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6. Bug:problem displaying the attached pdf file

   We have a problem displaying the attached pdf file.

   When opeing the file, the error message shows up and it's unreadable.

   "cannot find or create the font 'MS Mincho'.
   Some characters may not display or print correctly"

   Our setting:

   *Protected pdf using owner password
   *Fonts are not embedded
   *When we opened encrypted binary registry(CIDSystemInfo Dictionaries),
   the registry shown starts with 'FEFF' in Hex, otherwise registry
   is decryped correctly.

   *NG Versions

   1. Windows 7 Pro (64bit)
      Adobe Acrobat Reader DC
      2018.011.20038

   2. Windows10 Pro ver. 1703 (64bit)
      Adobe Acrobat Reader DC
      2018.011.20038

   3. Windows 10 Pro ver. 1703 (64bit)
      Adobe Acrobat DC
      2018.011.20036

   *OK Version(The problem does not occur in this version)
   Windows 10 Pro ver. 1703 (64bit)
   Adobe Acrobat 9 Pro

   We think 'regstry:adobe' is not decrypted correctly to 'Adobe' when
   it is encryped the binary above.

   Please show us how to solve the problem.
   (please see the attached files)

   Thank you.

   We have a problem displaying the attached pdf file.

   When opeing the file, the error message shows up and it's unreadable.

   "cannot find or create the font 'MS Mincho'.
   Some characters may not display or print correctly"

   Our setting:

   *Protected pdf using owner password
   *Fonts are not embedded
   *When we opened encrypted binary registry(CIDSystemInfo Dictionaries),
   the registry shown starts with 'FEFF' in Hex, otherwise registry
   is decryped correctly.

   *NG Versions

   1. Windows 7 Pro (64bit)
      Adobe Acrobat Reader DC
      2018.011.20038

   2. Windows10 Pro ver. 1703 (64bit)
      Adobe Acrobat Reader DC
      2018.011.20038

   3. Windows 10 Pro ver. 1703 (64bit)
      Adobe Acrobat DC
      2018.011.20036

   *OK… more

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   0 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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7. Need to be able to add in electronic signature the document is not "edible" !

   Need a area after signature to add in electronic signatures.

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   0 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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   Need Info  ·  Adminsagrover (Admin, Adobe) responded

   Hi,

   Could you please explain your issue in a bit more detail and how it affects the Fill and sign application?

   Regards,
   Sandeep

8. Error in Adobe Digital Editions

   Downloaded ADE 4.5.7 got this error when trying to open the how-to book
   :
   RETRECORDCOREINVALIDCLIENT_CERT

   Client certificate used with Digital Editions is invalid. You will not be able to use all the features available in this application!

   No clue why. Please fix.

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   1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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   Resolved  ·  amukherj responded

   I am assuming your concerns have been resolved. Let us know otherwise.

9. Validation of signed PDFs against (all applicable national) law(s)

   In Switzerland, as in the EU and many other countries, appropriately digitally signed documents in PDF format are legally fully equivalent to paper-based original documents, signed in handwriting by (one or more) signatories in the presence of witnesses.

   STATUS QUO

   Country specific differences in national law applicable to establishing the legal adequacy of digitally signed documents with their paper-based equivalents require country specific validation of digitally signed documents against applicable sets of criteria.

   The following criteria need to be fulfilled, in order for a digitally signed PDF file to be considered VALID in the sense of LEGALLY COMPLIANT with the intended purpose:

   1 - Signature and integrity of the signed file

   The document must be checked to see whether it has been modified since it was signed.

   2 - Revocation status of the signing certificate

   The signed certificate is checked to see if it was issued by a competent, accredited and trusted authority and if it was valid and not revoked (invalidated) at the time it was signed.

   3 - Validity of the time stamp

   A signed time stamp (TSA; Time Stamping Authority) from a recognised provider confirms the time the document was signed regardless of the computer’s system clock.

   4 - Authorised certificate for this document type

   Check whether a document has been signed with an appropriate certificate for the intended purpose

   CHALLENGE

   Some but not all of these legal requirements can be checked and validated by suitable software, such as Adobe's PDF Reader or Acrobat) used for opening and viewing the signed PDF document.

   Whether a particular certificate used for signing a PDF document was legally compliant with all of the country's applicable laws at the time the document was signed, requires validation of the document against an officially approved set of potentially country specific criteria.

   The publicly accessible validator.ch service of the Swiss Federal Administration provides such a validation service free of charge.

   This validator.ch service currently enables 10 different types of digitally signed documents to be validated against all applicable national laws.

   A formal validation protocol can be downloaded in certified PDF format. The validation protocol can be used along with the digitally signed PDF document as evidence to prove its validity.

   Experience with hundres of digitally executed transactions based on digitally signed PDF documents shows :

   Most recipients/readers of signed PDF documents to date will reject the digital document as being "insufficient / not trusted". Most recipients / readers will treat digital documents similar to copies. to be used for information purposes, but not to be relied upon. For lack of trust and better knowledge most recipients / readers still insist on receiving paper signed in handwriting, submitted via postal service rather than e-mail, either instead of or at least in addition to the digitally signed PDF document.

   Experience also shows that most recipients / readers of digitally signed PDF documents will accept such documents and will not insist on additional paper if they receive a validation report along with the signed PDF document. A positive validation report issued in the name of the Swiss Federal Administration never fails to impress the reader / recipient.

   Senders of digitally signed PDF documents can raise the acceptance with recipents / readers dramatically by validating the signed documents using validator.ch and sending both, either as a single PDF portfolio file, or as two separate PDF files . Sending both files as a single PDF file using PDF portfolio file format is most elegant - but may limit recipients / readers ability to open and view the files in non-Adobe browser plugins / PDF readers.

   Providing the two separate files with a common filename but different ending (e.g. -sig and -val) is highly recommended. It facilitates recognition of the "signed document" and its associated "validation protocol".

   SUGGESTION

   Submitting a digitally signed PDF document to an official validation service, such as validator.ch, is currently a manual process that requires some 15-20 seconds for uploading the signed document and downloading the validation protocol through a web interface using a browser.

   The ability to validate a signed PDF document by simply pushing a button, in the application used for creating / signing respectively opening / reading the PDF file, would be most valuable for all users, whether as senders / signatories or as recipients / readers of signed PDF documents.

   In addition to the web interface that validator.ch provides for manual upload of signed PDF documents and download of certified validation reports, validator.ch service can be accessed via API for discrete validation of signed PDF documents. The discrete validator.ch API interface uses cryptographical routines (hash), does not require the document to be uploaded (only the hash) and produced the validation report for a document of any size within seconds.

   Adobe is requested to consider integrating validation functionality by providing a "push button call" to an external official validation service (such as validator.ch) in its Adobe Reader and Acrobat DC products.

   PLEASE SUPPORT THIS SUGGESTION.

   Thank you.

   Thomas A. Louis
   thomas@louis.ch
   +41 56 410 1211

   In Switzerland, as in the EU and many other countries, appropriately digitally signed documents in PDF format are legally fully equivalent to paper-based original documents, signed in handwriting by (one or more) signatories in the presence of witnesses.

   STATUS QUO

   Country specific differences in national law applicable to establishing the legal adequacy of digitally signed documents with their paper-based equivalents require country specific validation of digitally signed documents against applicable sets of criteria.

   The following criteria need to be fulfilled, in order for a digitally signed PDF file to be considered VALID in the sense of LEGALLY COMPLIANT with the… more

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   Planned  ·  2 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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10. Bug:problem displaying the attached pdf file

    We have a problem displaying the attached pdf file.

    When opeing the file, the error message shows up and it's unreadable.

    "cannot find or create the font 'MS Mincho'.
    Some characters may not display or print correctly"

    Our setting:

    *Protected pdf using owner password
    *Fonts are not embedded
    *When we opened encrypted binary registry(CIDSystemInfo Dictionaries),
    the registry shown starts with 'FEFF' in Hex, otherwise registry
    is decryped correctly.

    *NG Versions

    1. Windows 7 Pro (64bit)
       Adobe Acrobat Reader DC
       2018.011.20038

    2. Windows10 Pro ver. 1703 (64bit)
       Adobe Acrobat Reader DC
       2018.011.20038

    3. Windows 10 Pro ver. 1703 (64bit)
       Adobe Acrobat DC
       2018.011.20036

    *OK Version(The problem does not occur in this version)
    Windows 10 Pro ver. 1703 (64bit)
    Adobe Acrobat 9 Pro

    We think 'regstry:adobe' is not decrypted correctly to 'Adobe' when
    it is encryped the binary above.

    Please show us how to solve the problem.

    Thank you.

    We have a problem displaying the attached pdf file.

    When opeing the file, the error message shows up and it's unreadable.

    "cannot find or create the font 'MS Mincho'.
    Some characters may not display or print correctly"

    Our setting:

    *Protected pdf using owner password
    *Fonts are not embedded
    *When we opened encrypted binary registry(CIDSystemInfo Dictionaries),
    the registry shown starts with 'FEFF' in Hex, otherwise registry
    is decryped correctly.

    *NG Versions

    1. Windows 7 Pro (64bit)
       Adobe Acrobat Reader DC
       2018.011.20038

    2. Windows10 Pro ver. 1703 (64bit)
       Adobe Acrobat Reader DC
       2018.011.20038

    3. Windows 10 Pro ver. 1703 (64bit)
       Adobe Acrobat DC
       2018.011.20036

    *OK… more

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    1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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    Need Info  ·  Pratyush Dhoundiyal responded

    Hi Takuya,

    I can’t find any attachments, can you please re-attach the PDF with which you are facing this issue.

    Thanks
    -Pratyush

11. You really have stuffed up this product. Why do I have to keep signing in to use it. Why does it continually crash? Why has it stuffed my

    Why do i have to keep signing in to use it. Why does it continually crash? Why has it stuffed my computer so that it runs at a snail pace?. You really have over engineered, over done the security, and over complicated this product. I will never use Adobe products again!!!!!

    3 votes

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12. Digital signature is too complex for the average Joe, i.e. me

    You need to make this easier and less quirky. I'm using a mac and have downloaded acrobat pro for windows and mac. It's taken me ages and youtube videos to create a digital signature and on a blank pdf I can add it. But when sent a pdf that already contains digital signatures it won't let me sign. In the end I used Mac Preview. This obliterated the original signatures but at least I could sign and send it back for resignature by others. The whole exercise is very unpleasant and very very annoying.

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    Need Info  ·  1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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13. protecting file not intentionally how to fix it?

    I don't know how I have protected the file, was not intentionally. How could I reverse it if I don't know the password? I think cause I fill the form in my computer I should be able to reverse do I? Please I need a help with it. tjhanks

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    Resolved  ·  1 comment  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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14. forgotten my acrobat password to edit

    I somehow have put a password on acrobat where it automatically puts paswords on all of my documents and i cant remeber what the password is.... this means i and others can open documents but we cant edit them????

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    Started  ·  5 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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15. This new version makes using digital signatures and placing signature boxes extremely difficult.

    There should simply be an option when you click to sign form to add a digital signature. That was a feature that existed before, but now it's much more difficult to create digital signature boxes.

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    Resolved  ·  4 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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16. My account is NOT EXPIRED. WHY DOES IT ALWAYS TELL ME EXPIRED?!

    My account is NOT EXPIRED. WHY DOES IT ALWAYS TELL ME EXPIRED?!

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    2 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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17. search password protected file

    sorry if this already here. i want to search a file secured with permissions password. and add highlights too...

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    Need Info  ·  cdas responded

    Dear user,

    Please launch the file in Acrobat /Reader. Press CTRL+D and check Security tab in Document properties.
    Please check the Document Restrictions Summary to see the list of actions permitted.
    Please could you share a screenshot of the same.

18. Password removal possibility to be introduced

    Hi, Once a receiver has opened a password protected file, it should be possible to remove the password if one wants. I am too sick of this.
    As an example, I get monthly bill from the Mobile operators for just few dollars. The bill needs to be uploaded for claim. Currently I have to take the print the PW protected file first, then scan the printed copy and save it and then again upload it

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    3 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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    Resolved  ·  cdas responded

    Document Open Password cannot be removed unless document editing permissions are given to the password. So ,considering the issue resolved.

19. Bug Report

    When I make a change to a file with Adobe Pro DC and try to save the file, Windows Defender is blocking access to the "Control Folder Access". It says to add the Adobe Pro DC exe file as a safe app. I can not locate the path. I have Windows 10 Creators Update OS.

    Please Advise

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20. creating certificate-based digital signature field

    In Acrobat IX I could create a digital signature field where the user, when getting the form and entering their pertinent information, could simply click on the field to digitally sign the form using their certificates from the employee badge. Did this option disappear entirely now? I don't want customers to have to select window, preferences, signatures and draw a rectangle to sign the form. Allow users to set up a block so the customer just needs to click the field and select their stored credential to sign the form. This is a MUST have option.

    5 votes

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    4 comments  ·  Security & Digital signatures  ·  Delete…  ·  Admin →
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    Resolved  ·  cdas responded

    User has been guided to add certificate based digital signatures