Compress and Lock PDF 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
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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

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:
It works and is easy to use. I think it is a little pricey for the occasional individual user. Would like to have options based on degree of use: e.g., individual vs corporate.
David S
2018-03-17
Good service. Can be a little difficult to line up the text in the correct spot. Would be good if you could easily move the text box up and down a little to line things up.
Buddy C
2019-08-30
PdfFiller is very convenient and easy… PdfFiller is very convenient and easy to navigate. There is a lot of resources to help facilitate whatever project I am working on.
Faith Bledsoe
2021-12-05
Excellent Service I did the 30 day trial period and was very satisfied with the process.I used the product for about 10 different documents within a 2 day period. I forgot about the trial period and was charged for an annual subscription and was emailed the confirmation. I went online and requested to cancel the subscription due to not needing the product and received the cancellation with 5 minutes, very satisfied.
Stephen Middleton
2021-05-27
Great tool for PDF format It's good to have it and override feature added on Smaller storage, clearer version, can override it, often use PDF format due to easier for storage, while others take too much storages It's not free and commercialize product, so it can be personal use. It has limited features when it's not upgraded to an override version
May X.
2021-04-25
I hope I can navigate this app I hope I can navigate this app, but it's what I've been looking for. I can't write because of a medical problem, and this is perfect!Shirley
Shirley Duarte
2021-04-16
I use this almost on a day to day with all kinds of documents. it is the best thing that has happen to me when it comes to computers. I have been trying to get everybody I know to get this program, I paid for the year and most likely will pay for next year too.
DuPresa J
2021-04-10
I'm satisfied. Very comprehensive, too many options for me. I'm satisfied. Very comprehensive, too many options for me. Simplicity, clarity, clear layout is lacking
hermann rist
2020-12-29
User friendly and functional as well as stable Just trying this out , and it is one of the best PDF editors I have ever used.User friendly and functional as well as stable. A very valuable tool.
Stuart P
2020-05-20

pdfFiller — a straightforward tool to Compress and Lock PDF online

If you have ever encountered any issues with attempting to Compress and Lock PDF using online options only, you're not the only one. Hours are spent switching back and forth between several solutions. Try using pdfFiller to get things done sooner and improve such processes.

pdfFiller is a professional, online PDF editor that works from the cloud. Simply open a web browser, log in to your account, select a form template, and Compress and Lock PDF in minutes. With our service, the process of editing files in PDF is simple and fast, seamless actually. An advanced set of tools enables you to do what you need and much more. Check out some features available in our solution:

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Page management features. Rotate, delete, or add new pages to reach your objectives
02
Watermarks. Protect your template by placing your company logo or name on pages
03
Digital signatures. Certify any document right from your device
04
Fillable fields. Add them to let clients to provide their data
05
Smart export. Send a document out by email or fax, transfer it to the cloud storage, or download as one of the available formats: PDF, DOCX, XLSX, PPTX, and JPG
06
Templates. Generate reusable documents and fill them out as many times as you need

pdfFiller is not only convenient for Compress and Lock PDF but keeps the information protected. Your information is stored and transferred firmly following the GDPR standards. Thanks to the two-factor authentication, there's no need to go another day with your information exposed to unauthorized third parties.

Value your time and get started with pdfFiller today for a more efficient approach to document management.

Compress and Lock PDF Feature

Get ready to streamline your PDF management with our Compress and Lock PDF feature. This tool not only reduces file size but also adds a layer of security, making it ideal for both personal and professional use.

Key Features

Reduce PDF file size without losing quality
Add password protection for enhanced security
Easy-to-use interface for quick access
Compatibility with multiple devices and platforms
Batch processing for handling multiple files simultaneously

Potential Use Cases and Benefits

Share large documents easily through email or cloud services
Protect sensitive information in business reports and legal documents
Organize and store PDFs without consuming excessive disk space
Improve upload speeds for documents on websites
Safeguard personal data while sharing files online

This feature tackles common problems you may face with large PDF files and security concerns. By compressing your documents, you save storage space and make sharing easier. Adding a lock ensures that only authorized users can access your content. Enhance your PDF experience today with our Compress and Lock PDF feature.

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!

Compress and Lock PDF Video Review

#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