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Fix Ink Signature Not Supported Error in Foxit

Explains the Ink signature is not supported in the signed document error that appears when signing with the Fill & Sign feature in Foxit PDF Editor.

Answer

When you received the following error message when you tried to sign the document with the Fill&Sign feature:

Ink signature is not supported in the signed document

Please help to check if the PDF document itself has been digitally signed by opening the Digital Signatures panel in Foxit PDF Editor and check if the file already includes a digital signature in this panel.

For PDF file which has already been added digitail signature, it is not allowed to be changed anymore, so even adding an ink signature with the Fill&Sign feature is not allowed.