Sometimes it is necessary to sign an Adobe document, but you may not want to print it, then sign it, and scan it again. This tutorial will explain how to create a transparent signature on PC computers running Windows with Powerpoint 2016 and then apply it to an Adobe Acrobat DC document (also works for XI Pro).

Notes: This tutorial assumes familiarity with the Windows snipping tool. *The instructions beginning at step 6 are the same on a Mac running PowerPoint 2011.


  1. You will first need to create a signature on a plain white piece of paper and scan it to your computer. (You may want to make the signature bigger than normal because you can always adjust the size later.)



  2. Next, open Microsoft Snipping Tool to capture and save a PNG image of your signature.
  3. Click on the down arrow next toNew and then on Rectangle Clip.

    Snipping Tool menu with Rectangle Clip selected from the New drop-down list.

  4. Left click your mouse button and drag the curser around the signature being careful to stay as close to the letters as possible.


  5. Click File and Save As... from the menu bar or the Save icon Save button. and save the signature as a .png file in a place where you can easily access it.

    Create Transparent Signature

  6. Next, open a blank presentation in PowerPoint.
  7. On the Insert tab, click on Pictures and navigate to where you saved the file.

  8. Left click on the file to highlight it and then click Insert to insert the signature image into the PowerPoint slide.

  9. Next, on the Format tab, click on Corrections and select the Sharpen: 50% option from right side of the top row.

    Format tab showing signature with different sharpen/soften effects.

  10. Next, click on Color and select Set Transparent Color and click within the image to set the image background transparent.

    Color Tab with  Set Transparent Color selected.          Signature.

  11. Finally, right click your mouse and select Save as Picture...

    Signature with options listed on right click and save as picture selected.

  12. Save the adjusted signature as a .png file in a place where you can easily access it. (You may want to give this a different name from the original file.)

  13. Finally, close PowerPoint and open Adobe Acrobat XI Pro.


  14. Open a PDF file on which you would like to apply a signature.
  15. Click on the Comment tab and left click on the Add Stamp icon Add Stamp icon..

  16. Hover your mouse over Custom Stamps and click on Create Custom Stamp... from the pop-out.

    Custom Stamps Menu with Create Custom Stamp... selected.

  17. In the Select Image for Custom Stamp window, click Browse and navigate to where you save the image. (Be sure to change the file type to PNG (*.png) to show the PNG file you saved in the earlier steps.)

    Select Image for Custom Stamp window with Acrobat PDF Files (*.pdf) selected.     JDsignatureFinal.PNG selected from list.

  18. Select the file and click Open to import the image into the Select Image for Custom Stamp window.

    Select Image for Custom Stamp window showing the signature with OK selected.

  19. Click OK.

  20. In the Create Custom Stamp window, choose Sign Here from the Category: drop-down list.

    Create Custom Stamp window with Sign here selected from the Category: drop-down list.

  21. Provide a unique name for the file in the Name: text box.

  22. Click the OK button.

  23. On the Comment tab, click on the Add Stamp icon and hover your mouse over Sign Here... to open a pop-out window.

  24. Click on the signature you created from the pop-out.

    Comment tab showing the signature on the pop out from Sign Here.

  25. You can fill out the information in the Identity Setup window and click on Complete or check the Don't show again box and click Cancel to not see the window again.

  26. Use the hand tool to drag the signature to the location where you want it to appear in the document and left click on a corner and drag the box to the appropriate size for your document. (You can use the hand tool to further adjust the placement of the signature.)

    Name and Signature shown when dragged in a document showing the image box.

  27. Once you are done left click anywhere else in the document to make the image box disappear. ( You will notice that the line appears behind the signature.)

    Name and Signature without the image box.

  28. Save the document and you are done. You will now be able to use the signature in other documents as well by following steps 23 – 27.

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