Password Protect PDF and Compress PDF for Windows 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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Last updated on Nov 13, 2024

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:
Not a bad program to work on pdf documents and comes with an online storage box. It does require a monthly subscription fee for the service, but may be more affordable for some if you don't already have the more expensive Adobe Acrobat or other program.
Kathy
2014-05-08
Support person was very professional and had a great deal of patience. Recommend some kind of tutorial or steps for getting started before filling a form. For example to edit steps 7, 8, 9. To save steps 3,4,5, etc. It would be great if a hot line number was available in some cases. Thanks again for all of your assistance. I look forward to using your service again in the future and would recommend your product highly.
Earl G
2016-12-29
Used PDF Filler to create 1099's for caregivers for my aunt and uncle. It was a good experience overall. I wish that I did not have to re-enter my information again for each of the 1099's.
Ernest D
2018-01-29
What do you like best?
The fact that I can pull internet forms down into the software and then sign them electronically is a life saver!
What do you dislike?
I really haven’t found anything I dislike about PDFfiller. It’s quick, efficient and super convenient.
What problems are you solving with the product? What benefits have you realized?
It solves the problem of having to print out forms sign them, and the rescan them to send them where they need to go.
User in Real Estate
2019-10-07
Manage and edit your PDF easily and quickly. pdffiller is a pdf processor quite different from the others, you can not only convert your files from pdf to other formats (and obviously from word, excel and others to pdf), but you can directly edit and process your texts online, so which you can write about the document, underline, place images, delete phrases and all the other things that a word processor allows you to do. Another advantage and surprises that you have, is that you can use files that are not only on your hard drive, but you can also use files from the web (through the address of the document) and you can integrate pdffiller with some app that you use daily as google drive, box, one drive and others. Finally, a very remarkable feature is that once you finish editing the file, you can choose some classic options such as the format in which you save it, but it also gives you the option to share it via mail, print it, send it by fax and use it in some social networks like facebook. Even if it is a bit strange, I miss the function of compressing the files, because whenever you add images to some document, the weight of the file increases a lot and makes the handling of the file more difficult. Besides that, there is nothing more to comment.
john r.
2018-11-16
It's been great at helping me achieve my teaching goals! I've been able to confidently make lesson plans in a timely manner, and the easy-to-understand tools make it so much more relaxing to get done!
Wall
2024-03-19
I had issues with billing and… I had issues with billing and subscription and the team handled it with top professionalism in a short while. This team is effective.
Jeremiah
2021-01-14
I needed to create a document and sign it in a hurry. I already own Turbo PDF, but, its confusing to use. I did a quick Google search and down loaded Pdf filler and had my doc printed in less than 10 min! It works for me.
irene
2020-09-17
i said it before you are excellent i said it before you are excellent, just your price for individual is high, if i had a company i would not hesitate and be your customer.Carlos Hernandez
Carlos
2020-04-27

Password Protect PDF and Compress PDF for Windows

Secure your documents with our Password Protect PDF feature while reducing file size using Compress PDF. This solution simplifies document management, making it easy for you to share sensitive information safely and efficiently.

Key Features

Password encryption for document security
Simple interface for easy navigation
Drag-and-drop functionality for fast uploads
Batch processing for multiple files at once
PDF compression to save disk space and streamline sharing

Potential Use Cases and Benefits

Protect confidential information in business documents
Share large files via email without compromising quality
Organize personal files securely on your computer
Prepare legal documents while ensuring compliance
Simplify file management in educational settings

This solution addresses the need for both security and efficiency. By using Password Protect PDF, you can lock your documents against unauthorized access. At the same time, Compress PDF allows you to reduce file sizes, making it quick and easy to share without losing quality. Experience peace of mind knowing your files are both secure and manageable.

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
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.
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 Password Protect PDF and Compress PDF for Windows - video instructions

#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