Lock PDF and Compress PDF for Laptop 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:
It think it can be very useful once I get the hang of it. Disappointed that for a yearly subscription of $72.00 you don't get access to the erase feature. This feature is even free online. Do consider and include it.
Bridget B
2016-10-15
Getting to put 3 people on the account has been great. All of the features are exactly what I needed, and the editor is easy to use. I was a little wary if it would be worth the money, but I'm very happy with my purchase.
Chel
2019-08-12
good experience My experience has been great. It allows me to do whatever I would need to do with a PDF and then some! I liked that you can do just about everything with the software from edited forms to filling them out or creating them. All in one solution. There really isn't much I can say I didn't like about the software. It really allows for me to do everything I would need to do with a PDF document.
Verified Reviewer
2019-09-20
Fast Service Delivery and Support The service and support offered by PDFFiller are outstanding. I was having a problem billing for the subscription. They responded to me timely and resolved my problem. I also used PDFFiller, and it proved handy in managing and organizing various documents.
Nadeem Shah
2024-10-16
I am a ******* Home Inspector and love PDFiller. I can do everything on my IPhone. I had a problem at first and had an online chat with ***, helped me fix a problem on a 4 point inspection and had it corrected in 15 mins. Once you learn your way around PDFiller it can save you lots of time.
Justin D
2021-07-13
This is a true time saver!!! This is a true time saver!!!! Not real user friendly BUT if you stay with it you'll reach your goal of a completed form. After that, print off and take to or send to the Court. If you need to modify later you simply go back to your account and documents saved and make the changes.
amfoxy
2021-05-11
How I spent an hour filling out fields, then was forced into a trial through the threat of losing my doc if I did not comply with trial? that? that was messed up. the app is amazing. but that first experience overshadows.
Anonymous Customer
2021-01-29
The last agent I spoke to was excellent… The last agent I spoke to was excellent and resolving this. Once I got through to him he was a pleasure to work with.
WK
2020-12-04
It's great. Not as good as adobe in the areas of text replacement or image addition. It is also not as sophisticated for selection mechanisms. If you need to fill in documents or create PDFs this is a solid application that can do the stuff that you will need quickly and cheaply.
Joseph
2020-05-13

Lock PDF and Compress PDF for Laptop

Protecting your important documents and saving storage space is now easier with our Lock PDF and Compress PDF feature for laptops. This tool ensures that your files remain secure while optimizing their size for quick sharing.

Key Features

Securely lock your PDF files with password protection
Compress PDFs to reduce file size without losing quality
User-friendly interface for easy navigation
Support for multiple PDF files in one processing session
Compatible with all major laptop operating systems

Potential Use Cases and Benefits

Share sensitive documents without the risk of unauthorized access
Easily send large files as email attachments
Save space on your hard drive and in cloud storage
Organize your documents for better file management
Enhance your productivity by quickly processing multiple files

Our Lock PDF and Compress PDF feature tackles common challenges you face. You can safeguard your confidential information while sending documents to colleagues or clients. By compressing your PDFs, you will enjoy faster uploads and downloads. This solution promotes efficiency, organization, and peace of mind for every user.

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
Download 4dots Free PDF Compress and install it on your Windows 10 computer. Open the app and click Add File to add the PDF that you want to compress. Locate and select the PDF > click Open. Choose how much you'd want to compress the image quality. Once done, hit Compress and you're done.
Click Encrypt, and select Encrypt With Password. Confirm that you want to change the security of the document. You must save the document to apply the new security settings. Type a name for your file, and click Save.

#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