user guide
UPDF Help Center

Get more info about using UPDF

help center
UPDF for Windows
UPDF for Mac
UPDF for iOS
UPDF for Android

Sign PDF

You can add a handwritten signature or an electronic signature to a PDF using UPDF.

Create Signatures

Click the Comment icon on the left toolbar to enter the annotation mode.

comment icon for signing pdf

Move your mouse to the Signature icon. Then you need to click the Create Signature button.

add signature to pdf

You can add signatures to your PDF document quickly with three methods:

  • Keyboard
  • Mouse
  • Trackpad
create signature to pdf

You can adjust the thickness of the signature by clicking the Thickness icon.

insert signature to pdf

You can change the color of the signature by clicking the Color icon.

add a signature to pdf

After creating the signature, you can place it anywhere on the document you want. You can also resize the signature according to your needs.

Note: You can create and save four signatures under the signature icon. If you want to add a new signature, simply remove one first.