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[Foxit PhantomPDF Business] Signature has wrong size (ignores DPI)

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  • Bug [Foxit PhantomPDF Business] Signature has wrong size (ignores DPI)

    I sign PDF documents on a regular base using picture files (scans). Unfortunately, it seems that PhantomPDF Business edition ignores the scanning resolution (DPI) contained in scanned files. As a result, signatures have the wrong size. Size must then be corrected manually but there is no way to enter the exact width/height when applying signatures.

    To reproduce the problem, first create a picture that will be used as a test signature, using any image processing app (such as GIMP) as follows:
    1. Create a canvas of size 400 x 400 pixels and 400 DPI.
    2. Fill with any non-white color.
    3. Save as square.png (PNG format).

    Then, in Foxit PhantomPDF Business Edition:
    1. Home > PDF Sign
    2. Click on 'Create signature'.
    3. In the dialog box "Create Signature":
      1. Uncheck "Convert signature to black & white"
      2. Create by 'Import File' and select the picture file square.png created above
      3. Click 'Save'
    4. View > Check "Rulers" (in the Page Display group)
    5. Home > PDF Sign, and select the newly added square.png signature
    6. The square signature is added to the page.


    EXPECTED: The expected size of the signature is exactly 1 inch by 1 inch (2.54 cm x 2.54 cm)

    ACTUAL: the square signature has a wrong size of approximately 1.375 inch x 1.375 inch (3.5 cm x 3.5 cm)

    FEATURE REQUEST: please use the DPI resolution embedded by scanning or image editing software to display signatures at the correct size.


    Note: adding the same square.png as an image prints the square with the correct size of 1 inch x 1 inch. To test this:
    1. Edit > Add images > Image from file
    2. Select the square.png created above and hit 'Open'
    3. The square is added to the page and has a size of 1 inch x 1 inch as expected


    Test environment:
    • Foxit PhantomPDF Business V9.4.1.16828
    • Windows 10 Pro 1809
    • GIMP V2.10.10

  • #2

    foxitkap ,I apologize for the trouble.We have provided option to let user choose whether to reserve the signature original size when create PDF sign in V9.5 of Foxit Reader/Foxit PhantomPDF.
    Foxit PhantomPDF/Foxit Reader 9.5 will be expected to be released within this week if everything goes well. So please help to give the V9.5 a try to see if it works on your part after it is released.
    Attached Files

    Comment


    • #3
      Hi,

      @Lisa_lee, sorry for my late response. I retested the issue, and unless I'm missing something, it seems the issue is not fixed. Actually, the size of the square is even larger now!

      To reproduce the problem, follow exactly the same procedure as in my first post, except:

      In Foxit PhantomPDF Business Edition:

      In the dialog box "Create Signature":
      1. Uncheck "Convert signature to black & white"
      2. Check "Keep original size" (NEW)
      3. Create by 'Import File' and select the picture file square.png created above
      4. Click 'Save'

      EXPECTED: The expected size of the signature is exactly 1 inch by 1 inch (2.54 cm x 2.54 cm)

      ACTUAL: the square signature has a wrong size of approximately 3.17 inch x 3.17 inch (10.6 cm x 10.6 cm)


      Again, adding the same square.png as an image (rather than a signature) prints the square with the correct size of 1 inch x 1 inch


      Test environment:
      • Foxit PhantomPDF Business V9.6.0.25114
      • Windows 10 Pro 1903
      • GIMP V2.10.12
      Attached Files

      Comment


      • #4
        foxitkap ,Thanks for your response and we apologize for the trouble caused by our Foxit PhantomPDF.I have already submitted this issue"PDF sign Signature has wrong size (ignores DPI)" to our internal bug tracking system for our QA team to do further analysis with report ID#QCPHANTOM-19823.I will keep you informed for any updates about this issue or you may also write back to support@foxitsoftware.com to track its processing status in the future.

        Comment

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