Your browser is more powerful than you think: Unlock PDF in Mozilla Firefox 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
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Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

Every PDF tool you need to get documents
done paper-free

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Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
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Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
Easy and straightforward interface. No trying to figure out how to convert to different formats as it does that for you. Easily editable as well. Great service!!!
Marc H
2016-02-29
PDF filler has worked for our business through out the year and would highly recommend it. We mostly use it for fax purposes, but for us that alone is worth what we pay per year.
Jennifer M
2019-01-07
Maybe I haven't found it, but it would help if there was a way to stop the fillable areas from snapping to each other. I had to figure out work-arounds for a lot of them.
Anonymous Customer
2020-01-06
What do you like best?
Can write anywhere on the form necessary.
What do you dislike?
Sometimes a little tricky reentering an error.
Recommendations to others considering the product:
Excellent document filler. Very easy to use.
What problems are you solving with the product? What benefits have you realized?
Completing insurance forms for insurance companies and for clients to sign.
User in Insurance
2020-02-03
What do you like best? Any pdf is editable Integrates well with Google Easy to use A great platform for document signing What do you dislike? More font options should be available Pricing can be high Docusign still signs documents better What problems are you solving with the product? What benefits have you realized? Easy to have multiple people sign forms Manages workflows flawlessly
Cynthia Hinderliter
2021-08-19
Absolutely worth it! Wonderful program. Slight learning curve, but then it's off to the races. Worth it if you are editing PDF's on the daily. Great save, download and share options all at once. Thank you for a great program!!
EBC
2021-06-29
Easy to import edit- wished I had this a long time ago! I was desperately trying to find a way to send my Doctor forms. Scanner/Printer was knocked out from the storm.
Timothy R D
2020-07-23
I used this product to edit and fill… I used this product to edit and fill out an application and found the software to be very easy to use and very effective! I unfortunately forgot to cancel my 30day free trial and was unexpectedly hit with the charge the week before payday when I really couldn’t afford it. I explained my situation to the customer support team via chat and they happily refunded me my payment! Could not be happier with the service they provided and the understanding of my situation. Would definitely recommend!
Steven Proudlock
2025-05-16
Well-designed and functional, user-friendly I use pdfFiller almost every day for my business proofreading for court reporters. It's been invaluable, whether I need to save a PDF in a different format (.docx, .xlsx, etc.), combine hundreds of pages or PDFs into one PDF, or quickly edit a PDF. I searched long and hard to find this program, which unlike other PDF programs I tried (including Adobe), consistently delivers on what I need it to do, is well-designed, functional, and user-friendly. And on top of all that, support responds almost magically quickly to questions or issues, like I had today, which in a deadline-driven business like mine is invaluable.
Jennifer Dubrow
2025-03-27

Unlock PDF in Mozilla Firefox with a professional document management tool

People usually have a variety of solutions for document management for many tasks, not to mention the feature to Unlock PDF in Mozilla Firefox. For instance, they might utilize one service to convert files, another one for editing them, and the third one for signing. Therefore, instead of completing a simple task in 5-10 minutes, time is spent switching among applications.

pdfFiller is a time saver for individuals and businesses on that page. In short, time saving equals money saving. So stop using multiple solutions and take advantage of one, fully-featured PDF editor. Choosing pdfFiller is actually choosing efficient document workflows and usefulness.

01
Export files the simple way. Download samples to your device, send them by email, fax, or even mail.
02
Send requests. Send out documents for signing. Add extra authentication via social media profiles or signers’ photos if required.
03
Manage layout. Merge, split, lock, or unlock files in a few clicks.
04
Edit PDFs. Add or change texts, rotate or remove pages, insert watermarks, etc.
05
Automate documents. Add fillable fields with different validation types to speed up the process of filling out forms.
06
design PDFs. Use the power of legally-binding electronic signatures to your papers from anywhere, anytime.

Using pdfFiller, you don't have to update your software or hardware. You also don't need to worry about free space on your hard drive; the service allows users to Unlock PDF in Mozilla Firefox without installing any additional programs. All you need is a browser and a stable internet access. Without a paper routine and the need for printing, manual filling, and signing, you don't need to worry about the expenses associated with them either. Go paperless with pdfFiller and boost the way you deal with PDFs!

Unlock PDF in Mozilla Firefox

Unlock PDF files effortlessly with the built-in feature in Mozilla Firefox. You can access restricted content while maintaining full control over your documents.

Key Features

Easily unlock PDF files directly in your browser
Maintain document formatting and quality
Support for various file sizes and types
User-friendly interface for quick navigation
Compatibility with multiple devices and platforms

Benefits and Use Cases

Access important documents without hassle
Share information with colleagues or clients quickly
Retrieve archived content for reference or study
Enhance productivity by saving time on unlocking procedures
Simplify document management in personal or professional settings

This feature effectively solves common issues related to locked PDFs. You no longer need to search for third-party tools or deal with complicated processes. Firefox allows you to unlock your files directly, saving you time and effort while ensuring a smooth experience.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

Video instructions on how to Unlock PDF in Mozilla Firefox

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025