Lock PDF and Secure PDF File 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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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
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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:
I needed some legal forms quickly in a divorce case. The forms were exactly what I wanted and needed. PDFiller allowed me to do it quickly and easily. The option to color filled in text would be great.
Rob
2014-07-31
very intuituve. quick and easy to learn. i operate mobily so i like the fact that i can use it on any of my 4 computers any where in the world. Very easy to drop text in. I like the erase and highlight feature. I tried at least 6 other platfroms and they were too dificult to use.
LARRY B
2015-02-21
I have only been using it a short time but it has made filling out some of my forms so much easier. I no longer have to print, fill out, scan and save.
Anonymous Customer
2018-02-01
I love this app I love this app, it makes sure to compensate for all the things which you would need to do for schoolwork. Personally though, I think it would make more sense to market it with ads rather than subscription. This is really useful for students who are homeschooled or aren't able to go to school and students usually don't have much in their pockets to pay for these kinds of things.
arrowrodriguez
2020-03-26
I've never had a tantrum using it...It makes my day much easier and saves me time and money! I enjoy using PDF Filler. It is a valuable asset to my business. I'm able to sign, send and receive documents, receipts, invoices, you name it! They have a form for everything, and if they don't, they will find one for you!! This program is easy to use and I love how there is a record kept of everything I send. I don't know how to re-use a form over and over without having to delete whats on it , so I can use it again. I wish there was an option to use a new one!!
Chandra D.
2017-11-14
Thank you so much for the opportunity… Thank you so much for the opportunity to use pdfFiller it was useful but due to difficulty of internet connection in our place and seldom I use the application, I have decided to cancel. Rest assured that I would also recommend it to my officemates.
Lorelie Asis
2022-10-17
The program is easy to use and powerful, and I had a great customer experience with their support team. I was stressed and they left me satisfied. 10/10 would recommend this to anyone in business.
Dom
2020-07-15
had a few problems with text had a few problems with text, once I got hang of it, it was OK, tried to add "auto-fill" for signature of doc, having troubles.
Jay Keating
2020-05-01
I would love to attend a webinar eventually, but time right now does not allow it. I have been extremely pleased with pdfFiller and recommend it to everyone I know who has to fill out a lot of forms. Maybe slower than hand writing , but legible which is extremely important. My biggest issue is somehow I have two accounts with other documents saved and do not know how to merge them. That was my problem not realizing i had an account already. Thank yall so much!!!
Kristi H
2025-05-03

Lock PDF and Secure PDF File for Laptop

Protect your sensitive information with our Lock PDF and Secure PDF File feature. In today's digital world, securing your documents is essential. This feature provides straightforward solutions to keep your files safe from unauthorized access.

Key Features

Password protection for all PDF files
Encryption to secure sensitive content
User-friendly interface for easy file management
Compatibility with various PDF readers
Options to restrict printing and editing

Use Cases and Benefits

Safeguard personal documents such as tax records and medical files
Protect business proposals and contracts from competitors
Share sensitive information securely via email
Comply with data protection regulations in your industry
Avoid data breaches that can lead to financial loss

This feature directly addresses your concerns about file security. By locking your PDFs, you retain control over who can view or alter your important documents. You can share files with confidence, knowing they are protected. With our Lock PDF feature, you mitigate risks and ensure your data remains confidential.

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!

How to Lock PDF and Secure PDF File for Laptop - video instructions

#1 usability according to G2

Try the PDF solution that respects your time.
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