How to Digitally Sign a PDF

To sign a PDF document or form, you can type, draw, or insert an image of your handwritten signature. You can also add text, such as your name, company, title, or the date. When you save the document, the signature and text become part of the PDF.

You can also capture a picture of your signature in a number of ways to use as an image when signing a PDF. For instructions on how to capture your signature, refer to the How to Electronically Capture Your Signature article.

Creating a Signature in Adobe Acrobat

  1. Open the PDF document or form you want to sign.
  2. From the right menu, select Fill & Sign.
    • Alternatively, from the Tools menu, select Fill & Sign
  3. Select Sign from the top toolbar.
  4. Select Add Signature.
  5. There are 3 ways to create a signature:
    • Type - uses predefined fonts to create your signature. (recommended method)
      a. Select Type.
      b. Enter your name as you wish it to appear in your signature.
      c. Use the Change Style dropdown to alter the appearance of the signature.
    • Draw - uses the mouse to draw your siganture.
      a. Select Draw.
      b. Use your mouse to draw your signature.
    • Image - uses a saved image file for your signature.
      a. Select Image.
      b. Browse to the location of the image you wish to use and select it.
      c. Select Open.
  6. Select Apply.
  7. Use the mouse to place your signature in the appropriate location within the PDF. If need be, use the resize box in the bottom right corner to adjust the size of the image.


Using a Signture Captured in Adobe Acrobat Mobile

  1. Open the PDF document or form you want to sign.
  2. From the Help menu, select Sign In/Sign Out.
    • This item is simply Sign In on the macOS version of Adobe Acrobat.
  3. Sign on using your Adobe ID.
    1. From the right menu, select Fill & Sign.
    • Alternatively, from the Tools menu, select Fill & Sign
  4. Select Sign from the top toolbar.
  5. Select the signature created in Adobe Acrobat Mobile.
  6. Use the mouse to place your signature in the appropriate location within the PDF. If need be, use the resize box in the bottom right corner to adjust the size of the image.


Using an Existing Signature

  1. Open the PDF document or form you want to sign.
  2. From the right menu, select Fill & Sign.
    • Alternatively, from the Tools menu, select Fill & Sign
  3. Select Sign from the top toolbar.
  4. Select the appropriate signature.
  5. Use the mouse to place your signature in the appropriate location within the PDF. If need be, use the resize box in the bottom right corner to adjust the size of the image.


Changing a Signature

  1. Open the PDF document or form you want to sign.
  2. From the right menu, select Fill & Sign.
    • Alternatively, from the Tools menu, select Fill & Sign
  3. Select Sign from the top toolbar.
  4. Select - next to the old signature.
  5. Select Add Signature.
  6. Create your new signature.
  7. Select Apply.
  8. Use the mouse to place your signature in the appropriate location within the PDF. If need be, use the resize box in the bottom right corner to adjust the size of the image.