Lock and Encrypt 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
Note: Integration described on this webpage may temporarily not be available.
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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:
Works extremely well Super easy to figure out Very intuitive On the minus side I don't have enough PDFs monthly to justify the cost. Maybe there could be a 'per page cost' for the infrequent needs.
Anonymous Customer
2014-09-26
I had to refile my last 4 years 1040 and all tax docs. After going through the IRS web docs but unable to edit them I found all the docs on the PDFfiller website. After a little work with the editors I was able to process professional docs. I bought a year sub and look to see if I can use this app for other business uses.
Rob R
2014-10-06
Pretty easy to use but would like to have have help had to fig out a few things and so help menu or something would be great but it great for me business and plan to keep the service
Clyde W
2017-12-07
What do you like best?
Ease of using the app online - ease of editing any type of document online and savings it
What do you dislike?
Nothing - we like the product. It is easy to use and save files.
What problems are you solving with the product? What benefits have you realized?
Revising PDF Forms - to be filled or revised. Price sheets, forms, etc.
Administrator in Wholesale
2019-05-28
Be the one who gets things done right this app has everything i need including electronic signature. If you ever find yourself needing to file legal documents all you need is right here.
stephanie Hagood
2024-06-17
I enjoy the feature that it has similar to PowerPoint. It helps you align your entries so that they look neat and comfortable for the viewer to read. The entries are convenient as I do not have to rely on drawing a text box. I would definitely recommend it to new users as well, as I am on myself. It Gives you a chance to try before you buy and has tools to help with almost all your legal questions and concerns!
Anthony A
2023-06-30
Good company with awesome products Good company with awesome products. Also, I even tried once to get a job as a product designer, but no luck. But that didn't change my attitude towards their digital products.
Oleksii Riepkin
2021-09-13
A very easy to use to file your claim A very easy to use to file your claim, and I never have any problem logging in. I highly recommend this site, I am very satisfied. They just give me access to the Insurance portal that is why I have to unsubscribe. I will use this in the future.
OFELIA GUILLERMO
2020-11-20
I never leave reviews, but Elisa from the 'chat' help was so helpful that I am leaving a review!!! I usually avoid chat help on websites, but Im glad I stumbled upon Elisa. Truly helpful and very efficent. Just became a happy customer
roy k
2020-10-20

pdfFiller — a straightforward tool to Lock and Encrypt PDF online

In case you're fed up with utilizing single-function programs in which you are only capable to complete one manipulation, we understand how you feel. Despite the fact that those are common features which most platforms support separately, only a few of them provide full compatibility to perform both simultaneously. Utilize pdfFiller to get things done sooner and speed up this kind of processes.

pdfFiller is a certified, online PDF editing tool that actually works from the cloud. Simply open a web browser, log in, opt for a template, and Lock and Encrypt PDF in minutes. With our service, the process of editing files in Portable Document Format is simple, smooth actually. An advanced set of tools allows you to do what you need and much more. Here are the most helpful features you can use within your documents on pdfFiller:

01
Templates. Generate reusable forms and fill them out as many times as you want
02
design. Approve forms right from your device
03
Fillable fields. Obtain the data from customers the smart way, by allowing them to enter it to your form
04
Watermarks. Protect your template by placing your company logo or name on pages
05
Extensive export. Send a form by fax or email, transfer it to the cloud, or download as one of the available formats: PDF, DOCX, XLSX, PPTX, and JPG
06
Layout management features. Rotate, add, or delete pages to give more information

Additionally, unlike some online-based tools, pdfFiller takes the security of all your data to the next level. We maintain the services based on the EU and US data protection standards. pdfFiller creates a protected connection once you sign in to account and keep information on servers in an encrypted form so that the possibility of unauthorized access to your profile and included sensitive data is at its lowest.

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

Lock and Encrypt PDF Feature

Protecting your sensitive documents is essential in today's digital world. Our Lock and Encrypt PDF feature provides a straightforward solution to keep your files safe from unauthorized access.

Key Features

Apply passwords to secure your PDF files
Encrypt files to prevent unauthorized viewing and editing
Intuitive interface for easy setup and management
Compatibility with various PDF readers and devices
Batch processing for securing multiple files at once

Potential Use Cases and Benefits

Safeguard confidential business documents from competitors
Protect personal information in documents shared online
Ensure compliance with privacy regulations and policies
Share documents with confidence when collaborating with others
Prevent data breaches by locking down sensitive information

By utilizing our Lock and Encrypt PDF feature, you can effectively address your security concerns. This feature empowers you to maintain control over your documents, ensuring that only authorized users can access them. No more worrying about who can view or modify your important files. With just a few clicks, you can set up robust protection that gives you peace of mind.

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.
Click the Select a file button above, or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Sign in to download or share your protected PDF.

Lock and Encrypt PDF Video Review

#1 usability according to G2

Try the PDF solution that respects your time.
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