Can you edit a digitally signed PDF?

If you received a PDF digitally signed by others, you can sign it, but can't edit it. While signing a PDF, if the signer chooses to lock the document after signing, the document becomes read-only for everyone, including the signer.

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Based on 12500+ reviews

Last updated on Dec 31, 2025

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pdfFiller scores top ratings on review platforms

When I started searching for a PDF to Word doc. a few days back, I downloaded 4 different trials and hated all of them!! They were not user friendly like this one is!! To anyone reading this, DO NOT waste your time researching other apps, you will not find anything better then this one! I would absolutely recommend PDFfiller to anyone who is reading this!!... and so will you.

Tina S

I have used a couple of the other apps and I believe that the PDFfiller is the easiest with very self explained instructions. I love the fact that the mobile app is just as user friendly as the app on my computer. Thanks

Jeannie D

What do you like best?
It is very user friendly, I love that I can easily access all my doc and change them if needed
What do you dislike?
I wish you could change the text that is on the original document
What problems are you solving with the product? What benefits have you realized?
Neater entries on pages

Patty Foley

I often come across documents and… I often come across documents and pdfFiller gives you the ability to create fillable documents and convert from one format to another. These functions are very useful to me in my work. The app is practical and easy for me to use. And also the price is good. Now I will use only pdfFiller

Filip Vishnevsky

A life saver pdfFiller has helped me to make easier my load of work and without I might be stressing a lot. What I like most about this software is the ease of use, as an educator I need to use PDF's everyday and this software helps me a lot with that. The free trial is good but then you need to pay for another features.

Allanys A.

I love the way you can use the PDFfiller I love the way you can use the PDFfiller. It helps me with documents that I have to fill out for different programs that I'm in for my granddaughter because she is Autistic.

Shirley A.

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