Can you sign forms in FormVu?

From version 2026.05, FormVu supports a form of signing signature fields. This is currently disabled by default, you can enable this on the command line using:

-Dorg.jpedal.pdf2html.useFormVuSigning=true

or programmatically using:

FormViewerOptions.setUseFormVuSigning(true)

Signing a form

Clicking on a signature field will open a dialog that will let you sign the field by entering text, drawing your signature with mouse/touchscreen, or by uploading an image. On signing and saving, the signature will be displayed on the signature field.

Cryptography

FormVu Signing is not currently the same as signing in Adobe Acrobat. FormVu adds a visual signature, but does not add any cryptographic information that guarantees the state of the other fields.

You can read more about Cryptographic signing on our blog: https://blog.idrsolutions.com/digital-signatures-in-a-pdf/