Lock PDF and Protect PDF from Copying for Chrome 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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Last updated on Dec 12, 2023

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:
The forms are good but they would be much better if the user could "snap to" the proper location when typing into a box. Without a "snap to" type guide it is difficult to place the cursor in the correct location within a box and especially difficult to get columns to line up.
Michael C
2014-07-08
Although I found it quite confusing I eventually understood it better. The Customer care that I was able to contact using the system was very helpful.
Mrs S P
2016-03-24
I am excited about the ability to download documents to be converted into fill-in forms. PDF Filler works very well and I have already converted various types of documents into fill-ins, which helped me to create more professional presentations.
Teri T
2016-06-15
I love how easy PDFfiller is to use, and with all the how to do's no one should ever run into a problem they can't overcome on there own. As well the membership cost is great. Thank you so much for this great program.
Nicole B
2018-01-24
i love the user experience but it is a little difficult to tell where the writing will show up on the lines once I save to PDF and send to clients. also, if the lines are close together it is hard to tell if your letters will get cut off. but overall its a great product going to try to use online and see how that works.
Gerald L
2019-02-03
What do you like best?
The best feature is that you can email documents to vendors and have them electronically sign them and then email them back.
What do you dislike?
I don't think there is anything to dislike. When my company paid for me to have this I felt like I was in Heaven!
Recommendations to others considering the product:
If you are having issues getting signatures with your drivers- look no further! This is it! So easy to use and send and Drivers can send the signed documents back!
What problems are you solving with the product? What benefits have you realized?
We have a lot of vendors that work outside of the office so having a system where they can sign electronically is such an awesome feature!
User in Transportation/Trucking/Railroad
2019-04-23
It took me awhile to understand how to… It took me awhile to understand how to work this software but once I got my file downloaded it was great and saved me a lot of time not having to retype each form
Barb Robinson
2020-02-19
Always seems to work great and when I… Always seems to work great and when I did have an issue the tech support was great to help even though it was my fault for the error.
Randy Cohen
2021-05-06
What do you like best? I like how easy it is to complete pdf forms using PDF filler. It simplifies my work so much and makes my day easier. What do you dislike? Love everything about the program! It is so easy to use and a pleasure to complete forms. Recommendations to others considering the product: Start using it today! What problems are you solving with the product? What benefits have you realized? I am able to edit pdf forms easily and make the changes needed.
User in Accounting
2020-11-18

Lock PDF and Protect PDF from Copying for Chrome

Secure your PDF documents with our Lock PDF and Protect PDF from Copying feature for Chrome. This tool empowers you to safeguard your important files from unauthorized access and copying, ensuring that your content remains confidential.

Key Features

Quickly lock PDFs to prevent editing or copying
Set permissions for users to control access
Intuitive interface for easy navigation
Compatible with various PDF viewers
Simple installation through the Chrome Web Store

Use Cases and Benefits

Ideal for businesses sharing sensitive information
Perfect for freelancers protecting intellectual property
Useful for educators distributing course materials securely
Great for anyone wanting peace of mind with published content

This tool addresses your concerns about PDF security. By locking your documents, you maintain control over who can view or copy your work. Not only does this feature protect your sensitive information, but it also fosters trust with your audience, knowing that your content is secure.

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 your PDF. Go to Protect Tab. Click Password. Enter Password. Select the Printing allowed dropdown. Select None means to prevent printing.
Lock It Up: Password Protect Files. Password protects any file or folder. Use the Lock It Up Chrome Extension to password-protect any file or folder. Simply drag-and-drop files/folders into the side panel, open the popup, enter a password, and a file will be downloaded that is AES-256 bit encrypted.
Open your PDF. Go to Protect Tab. Click Password. Enter Password. Select the Printing allowed dropdown. Select None means to prevent printing. Select the Changes Allowed dropdown. Select None -means the highest level of protection.
Protect PDF from Copying and Editing Go to the “Protect” tab, then click the “Set Password” button. Then select the option of “Permission Password”. Enter your desired password and permissions. Once confirmed, click on “Save” button to apply, and save your PDF file.

How to Lock PDF and Protect PDF from Copying for Chrome - 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