How do I add a signature to a PDF on each page?

Open a PDF that contains multiple signature fields. Right-click the first signature field to be signed and choose to Certify with Visible Signature option. The Certify Document window will appear. Click Sign. Save the PDF & enter the password for your Certificate/USB Token.

How do I validate an invalid digital signature in PDF?

Open the PDF file in PDF Converter Professional. Left-click on the Digital Signature field. Click “Verify Signature”. Click “Properties”. Click “Verify Identity”.

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Based on 12500+ reviews

Last updated on Dec 28, 2025

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pdfFiller scores top ratings on review platforms

Very versatile software for editing (specifically filling in) PDF documents. I looked specifically for software to fill out tax forms and PDFfiller exceeded my hopes and expectations. Good job.

David B

What do you like best?
Easy to use, and safe for signatures, recommend this product
What do you dislike?
Love this product, there has not been any issues
What problems are you solving with the product? What benefits have you realized?
Electronic signatures on HIPPA related forms

Administrator in Health, Wellness and Fitness

PDF Review The ability to get a signed work authorization within minutes of sending to the client. There's nothing I don't like about this software.

Eddie L.

The level of communication the team has… The level of communication the team has is second to none. Best customer experience. I recently tried the free trial, I forgot to cancel after the free trial because I needed their service @ that time only. When then cancel my subscription I didn't get a refund, but the team explained to me why that happed if do want a refund what should I do.I then followed the steps and within the time they said , I got my refund. Keep up the great work team

Haseeb Amjad

The entire staff including customer… The entire staff including customer service, my managers and accounting have all made this process very streamlined and easy to follow. Everyone has been quite kind and ready to get me going. Because of those gestures and professionalism, I look forward to being a key member of your organization. Thank you, Robert Weiss

Robert Weiss

We would like become a distributor and sale partner for PDFfiller. We will design documents and forms to sell through PDFfiller. Many thanks in advance foryour cooperation. Best regards,

Marcel D

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