Your browser is more powerful than you think: Make PDF Secure in Mozilla Firefox For Free

Drop document here to upload
Select from device
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal

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

Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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:
My original reason for joining was just to try the program and use the conversion from PDF to Word feature. Our club has need for developing forms and sign in documentation which I am exploring your features. Not as easy as I would have liked. Good product so far for my needs, but I'll make a final decision towards the end of my trial version.
Matt K
2018-09-17
When going from preview back to editable view all imputed info disappeared. Not sure why that happened but I selected cancel and all info reappeared.
Sue L
2020-02-25
Thank you for your services Thank you for your services! I’ve been working on a very important document to correct my military records, for seven years I’ve been working towards correcting an Ilegal discharge from active duty from the Army. In February I received news that changed my while direction so I started over from scratch. My draft is now complete and now I have all the evidence and events storyboard complete. There was a very important PDF from 2012 that is no longer available on the .gov website so I resorted to Google and found it on your site. Your site helped me to gather the necessary blank PDF forms that proved they did indeed break thelaw. It was a lifesaver for me!
Aaron Duhon
2019-09-28
Excellent Software and a great price Very good and have used it for years. PDF filler works so well and make it so easy to fill out forms online. It works and the price is very reasonable. I use this for all of my documents as it saves me time. I can't think of a negative with the software, it always works and has a range of features which are constantly getting better.
Ben T.
2018-10-20
Excellent support and customer service I registered for an annual membership, but I didn't pay attention that the membership fee is calculated in US dollars. I live in ****** and it was expensive for me. I emailed support department to cancel my membership and they responded in less than an hour and sent me a full refund.I appreciate the excellent customer service and proper support, polite and professional behavior of the staff.
shokouh F
2023-07-02
Thank You for an Amazing Program I was having a difficult time creating a new document to file in my folders. I use this program now for all my note taking as I'm a Social Worker at a High School. The fill in bulk feature and the create from template has been life saving to me. I can easily generate notes on my caseload of students without having to go document by document. It has helped with my organization and the customer support has been Tier 1, there hasn't been an issue that I haven't had solved same day.
Shannon Williams
2022-11-21
Superb customer service Superb customer service! Swift replies, solution oriented, anticipated my needs & assured if I needed anything else. I’m grateful to be taken care of.
SuperModelJaz
2021-05-30
Hi Team, All Good but sometimes it works very very slow and have improved a lot in compare to previous years as i am using since 3 yeras in a row down the line.
Arun
2020-12-05
its a great web base portal and makes… its a great web base portal and makes it easy . way better than Adobe for regular day to day document and signature
Hassan
2025-04-07

Make PDF Secure in Mozilla Firefox with a professional editor

People tend to have numerous resources for document management for many tasks, not to mention the feature to Make PDF Secure in Mozilla Firefox. For instance, they might utilize one program to convert files, another one for modifying them, and the third one for eSigning. Consequently, instead of completing a simple task in 5-10 minutes, time is spent switching from one tool to another.

pdfFiller is a time saver for individuals and businesses alike. Briefly, time saving equals money saving. So stop using multiple platforms and take advantage of one, fully-featured PDF editor. Choosing pdfFiller equals choosing streamlined document workflows and usefulness.

What's the difference between our platform and our competitors? Take a look at the list below to learn more:

01
Security. Ask a recipient to attach their photo or confirm their identity with a phone number.
02
Additional capabilities. Gain access to multiple professional tools for editing text and adding new objects online at once.
03
Additional editor. Make significant changes to documents by using the Rewrite option that allows to modify a massive amount of information.
04
Document layout. Reorder pages, add new, and rotate or delete existing ones with the Rearrange feature.
05
Interactive elements. Simplify the process of collecting data by inserting customizable fillable fields, checkboxes, and dropdown menus.
06
eSignature. Approve documents and send them for signing without leaving the browser tab.

Using pdfFiller, you get all of the features you want immediately. You also don't need to worry about freeing up space on your hard drive; the service allows users to Make PDF Secure in Mozilla Firefox without installing any additional programs. A stable internet connection is enough to start skyrocketing your document management. Go paper free with pdfFiller and improve the way you deal with PDFs!

Secure Your PDF Files with Mozilla Firefox

Make PDF Secure in Mozilla Firefox offers you an effective solution to protect your sensitive documents. With this feature, you can easily add security measures to your PDF files, ensuring that only authorized individuals can access them.

Key Features

Password protection for PDF files
Restrict printing and editing options
User-friendly interface for quick access
Complete control over document permissions
Compatible with various PDF file types

Potential Use Cases and Benefits

Securely share financial reports with colleagues
Protect personal information in legal documents
Manage sensitive client data effectively
Safeguard academic papers from unauthorized use
Prevent data breaches in professional settings

By using Make PDF Secure in Mozilla Firefox, you can confidently share your documents without worrying about unauthorized access. This feature allows you to address your security concerns directly and ensures your information remains protected.

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!

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
One-click option to protect a PDF with a password Choose File > Protect Using Password. Alternatively, you can choose Tools > Protect > Protect Using Password. Select if you want to set the password for Viewing or Editing the PDF. Type and retype your password.
Open the PDF and choose Tools > Protection > Encrypt > Encrypt with Password 6. If you receive a prompt, click Yes to change the security. 7. Select Require A Password To Open The Document, then type the password in the corresponding field.
How to change default PDF reader using Settings Open Settings. Click on Apps. Click on Default apps. Click the Choose default app by file type option. Quick tip: You can also use the Set default by app option to change the default app to open PDF documents.
Windows users have many ways to encrypt or password protect PDFs for free. If your computer comes with a Microsoft Office license, you can do it in two steps. First, open the document, click on the “Info” tab, “Protect Document,” and then “Encrypt with Password.”

Video instructions on how to Make PDF Secure on Mozilla Firefox

#1 usability according to G2

Try the PDF solution that respects your time.
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal