How do I add a signature to a PDF Filler?

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How do I electronically sign a PDF document?

Open the PDF document or form that you want to sign. Click the Sign icon in the toolbar. The Fill & Sign tool is displayed. The form fields are detected automatically. Click the Sign icon in the toolbar, and then choose whether you want to add your signature or just initials.

Is a digitally signed PDF legal?

Electronic signatures have the same legal status as handwritten signatures throughout the United States, thanks to the DESIGN Act and the Uniform Electronic Transactions Act (BETA).

How do I digitally sign a PDF online?

In the signature panel, click Image, then Select image to browse to your signature image. You can also use initials or type or draw your signature. Click Apply to place your electronic signature in the signature field or anywhere in the PDF. Then download or share your signed document.

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pdfFiller: PDF Signing Tools Online on Linux For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT

Based on 12500+ reviews

Last updated on Jan 16, 2026

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Combine multiple PDFs into one.

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Compress PDFs to reduce their size.

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pdfFiller scores top ratings on review platforms

This is a really great PDF convertor. Very easy to use. The best I have seen. A very good find. I would recommend especially to fill out government documents that could be rejected because of bad handwriting.

MARK M

I am glad to have this service available. The use is a little awkward ... hard to navigate between pages. Wish it was easier. I do like the ease of accessing and saving documents from the website to my computer.

Mary Beth P

easy to use...but...make so forms can be shrunk so they aren't huge all the time when open, when they are huge and cannot be shrunk it can give you a headache...templates for forms ( or any often-used form) should stay at the top, to find them easy, instead of sinking down the list...you have to hit at least 5 buttons to print, and that is horrible...

Anonymous Customer

IT WAS VERY USEFUL TOMUSE. I WAS ABLE TO SEND MAILPIECE TO MY RECEIVER. IT WAS OKAY BUT THERE WERE MINOR ISSUE AS TO UPLOADING THINGS I WANTED TO FAX OR TO SEND OVER IT WAS A COMLPLICATION WITH THAT.

KIARIA C

This program/software is very user friendly. When I started my 30 day trial, I just couldn't believe how comfortable I felt using this program. I'm very happy with it. I am happy that I was invited to a webinar, this will help me master the program.

Lucy C

I was completely pleased... I was completely pleased with the speed at which Sam was able to help me. He had a complete understanding of ny request and were very professional.

Lurvey Beazer

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