Encrypt PDF Online 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
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
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

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:
I AM NEW AND LEARNING BUT SO FAR IT IS GREAT. EVEN IF I ONLY PRINT A FEW FORMS A MONTH THE SMALL PRICE IS WORTH THE CLEANESS OF THE FORM. I HAVE BEEN HAND WRITING THEM AND USING WHITE OUT.. I AM GLAD FOR THE SHARPNESS OF THIS AND EASY TO FIND FORMS ..
Anonymous Customer
2014-12-16
Excellent experience! It's fantastic. Ir brought me the beso solution to correct mistakes in pdf documents. Really useful tool!! I will recommend ir to my friends.
Alcira S
2017-05-04
I did not know about PDFfiller.com but once I found it and realized what great features were offered and how easy it was to navigate and use, I was definitely impressed. I love the features since I work a lot with PDF documents and now I can make corrections or additions without recreating the entire document. PDFfiller makes my job much easier.
Rosemarie G
2018-04-11
I am not a computer type of person, this this is a very good program. that I was able to figure out. thank You very much. I REALLY needed your help.John L. Texas
John L
2019-06-10
Efficiency When you have no device to print out and thrn scan..you can use this software. It is very good software since you can edit signs and print document without having device to print out. I do not have any leat because it is good at all since it has excelent advantages to me.no disadvantage at all.
Saidi N.
2020-02-23
This is an absolutely AMAZING service This is an absolutely AMAZING service, the only reason I had to give 4 stars instead of 5 is due to the cost. To expect people to pay so much money (especially during the pandemic) when everyone needs to work and operate from home is unconscionable. If this service was, say, $12.99/mo. then I would most definitely pay it. However, the monthly cost is nearly three times that high, and it is not something I can afford on unemployment benefits of $235 per week. This service is amazing and efficient, but the company is not being realistic about the current cost of its services. And no, offering annual payments of $200+ is not a viable solution.
Laurel King
2021-03-17
Great Customer Service and an Amazing Program!!!! Fast and effective customer service when I had difficulties. Easy and user-friendly program that is very versatile. Overall great program!
Steven D.
2021-01-31
The PDF filler application and the great tool list The PDF filler application and the service from customer service and billing were all really good. The application is very helpful in this format for small business needs. Would recommend.
Virginia ONeal
2021-01-22
When I realized I had to solve a problem involving this company, I prepared myself for a multi-day, inconvenient annoyance. Instead, I was very pleasantly surprised to find a prompt reply which ended swiftly in a satisfactory way ... even though it turned out to be my own fault! I used the program for only one item but I "poked around" in it to get a better handle on it. For anyone using PDF's on an almost daily basis, I'm sure pdfFiller would be an extremely useful tool.
Vera
2020-04-21

Instructions and Help about Encrypt PDF Online For Free

Sometimes we hear that someone got into somebody’s mailbox, hacked into a database or stole private account information. Any user of this or that cloud storage can pose a perfectly valid question: ‘Are my documents safe?’ or ‘What measures can I take to protect my sensitive information?’ Our answer to the first question is unconditionally affirmative, and if this is not enough, you can additionally protect your documents with two-factor authentication in your Encrypted folder. To activate the Encrypted folder, select it in MY BOX and enter your cell phone number.
Screen
You will immediately receive an activation code via text message. Enter the activation code and click Verify to create a password.
Screen
Create and confirm your password to open the folder.
Screen
To add documents to the Encrypted folder, drag them from any other folder. After you’ve finished working with your protected documents, close the Encrypted folder by clicking the key icon. It will also automatically lock after 10 minutes of inactivity.
Screen
To access the documents in the Encrypted folder, you will have to enter your password again.
Screen
To learn more about how to encrypt PDF documents online, please watch the following video:
If you like being able to encrypt PDFs online, you might be interested in a range of other great features that pdfFiller has to offer. Some of these include tracking all activities in your account, creating a unique document ID for any document, creating templates, converting PDF documents to Word, Excel or PowerPoint documents. Check out these tutorials to see the other great things that pdfFiller can do for you.

Encrypt PDF Feature Product Description

Welcome to our Encrypt PDF feature! Secure your documents with ease.

Key Features:

Effortlessly encrypt PDF files with a click of a button
Choose from various encryption strength options
Protect your sensitive information with password protection

Potential Use Cases and Benefits:

Securely share confidential documents with colleagues or clients
Ensure compliance with data protection regulations
Safeguard your personal information from unauthorized access

Encrypt PDF feature is the solution to your document security concerns. With our simple and reliable encryption tool, you can rest assured that your files are safe and protected. Try it out today and experience peace of mind!

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!

How to Use the Encrypt PDF Feature in pdfFiller

Encrypting your PDF files adds an extra layer of security to protect your sensitive information. With pdfFiller's Encrypt PDF feature, you can easily encrypt your PDF documents and ensure that only authorized individuals can access them. Follow these simple steps to use the Encrypt PDF feature:

01
Log in to your pdfFiller account. If you don't have an account, sign up for free.
02
Upload the PDF file you want to encrypt. You can either drag and drop the file into the pdfFiller interface or click on the 'Upload' button to select the file from your computer.
03
Once the PDF file is uploaded, click on the 'Encrypt' button located in the toolbar at the top of the page.
04
A pop-up window will appear, allowing you to set a password for the encrypted PDF. Enter a strong password that is easy for you to remember but difficult for others to guess. Make sure to include a combination of letters, numbers, and special characters.
05
After setting the password, click on the 'Encrypt' button to encrypt the PDF file. pdfFiller will automatically encrypt the document and save it as a secure PDF.
06
You can now download the encrypted PDF file to your computer or share it securely with others. Remember to keep the password confidential and share it only with authorized individuals who need access to the document.

By following these steps, you can easily encrypt your PDF files using pdfFiller's Encrypt PDF feature. Enjoy the peace of mind knowing that your sensitive information is protected!

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
First, open the document, click on the “Info” tab, “Protect Document,” and then “Encrypt with Password.” File archiver programs like WinRAR can be useful when you need to to password protect several PDFs.
First, open the document, click on the “Info” tab, “Protect Document,” and then “Encrypt with Password.” File archiver programs like WinRAR can be useful when you need to to password protect several PDFs.
Click the Select a file button above or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Sign in to download or share your protected PDF.
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.
PDFEncrypt is a free, open-source native Windows app that allows you to password protect (encrypt) PDF files for free, without purchasing expensive software. PDFEncrypt is a free, open-source utility to encrypt PDF files using standard PDF encryption algorithms.

#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