Last updated on
Sep 21, 2025
Password Protect PDF and Encrypt PDF for Server 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
Note: Integration described on this webpage may temporarily not be available.
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Discover the simplicity of processing PDFs online
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Fill out, edit, or eSign your PDF hassle-free
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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.
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.
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:
The best service ever! As a chiropractor, I am able to fill out my exam and soap notes with pdffiller then save them in the encrypted files for Hipaa compliance. My office is on its way to paperless as we speak. I love this service. Highly recommend it to all.
2014-10-17
PDF filler enables to use activities that i have found that i can put in to another language. As the resources for the children i teach are scarce PDF filler opens up more opportunities for me as a teacher of another language.
2017-09-29
What do you like best?
The ability to edit PDF documents quickly and easily
What do you dislike?
When documents are locked by other applications such as DocuSign you cannot sign them or open them with this software. You are however able to sign them on that platform after creating a separate logon with DocuSign.
What problems are you solving with the product? What benefits have you realized?
Ability to send to sign is a huge time saver in getting contracts signed by sellers
The ability to edit PDF documents quickly and easily
What do you dislike?
When documents are locked by other applications such as DocuSign you cannot sign them or open them with this software. You are however able to sign them on that platform after creating a separate logon with DocuSign.
What problems are you solving with the product? What benefits have you realized?
Ability to send to sign is a huge time saver in getting contracts signed by sellers
2019-05-21
I use the website to do my W-2s and it…
I use the website to do my W-2s and it was so easy. Then When I forgot to canceled my subscription because I am to small of a company to use them all the time they were so helpful and easy to work with. They gave me a full refund. There customer service is great and it is an such an easy platform to get things done with.
2019-04-15
IT WAS A GREAT SOFTWARE BUT I HOPE YOU…
IT WAS A GREAT SOFTWARE BUT I HOPE YOU CAN HAVE PESO CURRENCY TO PURCHASE THIS PREMIUM SINCE I AM STILL AT TRIAL USE.
2024-02-13
Perfect for College
I've been using this for my online math course worksheets and this has been so helpful. It's easy to type and draw, editing isn't annoying, and the color palate is easy on the eyes.
2022-09-07
Great PDF Editor. i haven't found much issues as of yet. Very convenient and responsive program. Does all I need. Hopefully the quality stays the same or improves. I'm satisfied as of now. Thanks.
2021-04-14
Pdf-Filler was the best solution to work on Pdf files I have to fill out and edit.
I use Mac computers and I could not find any other Pdf product working so good on IOS.
2021-04-08
What do you like best?
I use it everyday for certificates of insurance, the program is very user friendly
What do you dislike?
I have tried to save the link on my computer but it never saves. I always have to google acord PDF filler.
What problems are you solving with the product? What benefits have you realized?
It saves all my COI so I just need to change the date and certificate holder.
2021-02-11
Password Protect PDF and Encrypt PDF for Server
Ensure your documents remain secure with our Password Protect PDF and Encrypt PDF for Server feature. This essential tool helps you shield sensitive information from unauthorized access, giving you peace of mind while managing your files.
Key Features
Set strong passwords for PDF files to limit access
Encrypt PDF files for secure data transmission
User-friendly interface for easy setup
Batch processing for multiple files at once
Comprehensive support for various PDF standards
Potential Use Cases and Benefits
Protect financial statements before sharing with clients
Secure employee contracts and sensitive HR documents
Prevent unauthorized access to confidential research files
Ensure compliance with data protection regulations
Safeguard personal information in legal documents
This feature effectively addresses your need for document security. By allowing you to enforce strict access restrictions, it protects your valuable information from misuse. You can confidently share your PDFs, knowing they are encrypted and password-protected. Gain control over who can view, print, or edit your documents, and reinforce your commitment to data security.
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
How do I encrypt a PDF with a password?
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.
How to Password Protect PDF and Encrypt PDF for Server - video instructions
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