Password Protect PDF and Encrypt PDF for Computer For Free

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Last updated on Sep 21, 2025

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:
After using many other PDF editors finally a user-friendly, is fast, does not freeze and gives me any problems login in or crashing after I purchased.
SARA R
2018-07-13
Awesome experience. I use this tool to submit financial documents to my Global Headquarters and this makes me look like the professional that I'm not.
Robert A
2019-10-28
Delighted at the ease of assisting me with a form I had never used before. Easy and quickness of maneuvering through various forms which I am unfamiliar with completing. Everything - there are no unknowns when using this program. It makes creating forms extremely easy!
Cathy T.
2017-11-24
The best online utility for word processing of any type available. The best online resource for anything that deals with words. Has every feature imaginable, and then some, to get personal or professional work done fast. I have caused myself alot of grief and wasted valuable time looking for a better or cheaper app and I feel as if I have tried them all. pdf Filler has it all and will be the only app you will ever need. From converting files to sending out your daily mail. This app does it all and it is simple, clear and concise!
CDB
2022-11-03
Basically does what I need Basically does what I need. Could use better Help function. Example: I haven't figured out how to control the type font used nor how to match existing fonts in a document.
avlstrike
2021-12-29
I love that I can fill out forms and save them fax them from here and really anything I need to do in one area. I hate that it cost so much cause I’m on a fixed income and don’t have the money to keep it I can only use it for the free 39 days.
Beauty B
2021-02-27
I signed up originally to utilise this service. Whilst I did not wish to continue with the service (just wouldnt need it again) I did struggle to cancel the service. I sent an email outlining my issue and got the quickest response back and my account fixed and funds returned. Great service if you do require all the time. Easy to use. Highly recommend.
Bmua
2020-07-25
PDFfiller is very customer focused. When I emailed them they responded immediately and followed up with me to assure my questions were answered. I would highly recommend this company.
Cheryl P
2020-06-04
Great website!! So far I love this service! Only had some tech issues yesterday and they were addressed quick by your tech support. I love the layout, it's very easy to navigate, and the editing options on the top bar also make it super easy to check, sign, and type just about anywhere in the document. I love it!
Carolina
2020-05-05

Password Protect PDF and Encrypt PDF for Computer

Secure your documents with our Password Protect PDF and Encrypt PDF feature for computers. This tool ensures that your sensitive files remain confidential and accessible only to authorized users.

Key Features

Easy-to-use interface for quick setup
Strong encryption to safeguard your files
Customizable password settings for enhanced security
Support for batch processing to secure multiple files at once
Compatibility with various PDF formats

Use Cases and Benefits

Protect personal documents, such as tax files or medical records, from unauthorized access
Secure business proposals and contracts during client presentations
Safeguard intellectual property, including plans and designs, from prying eyes
Share files securely with colleagues while ensuring privacy
Comply with data protection regulations by encrypting sensitive information

With Password Protect PDF and Encrypt PDF, you can rest assured that your files are safe from unauthorized access. Whether you work in an office or manage your personal documents at home, this feature provides you with peace of mind. By implementing strong encryption, you not only protect your sensitive information but also maintain your professional reputation. Start using this tool today and experience the ease of secure document management.

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!

#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