Unlock PDF and Secure PDF File for Android 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
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 paid for a year subscription to PDFfiller because I needed to fill out a form for college and employment applications. No stress like trying to add a text box in the correct place when using other programs. I have used it more than expected. Very pleased!
Heather F
2017-03-02
PDFfiller is very easy to use and the auto-save feature works reliably. One thing that I didn't like was that I had to sign up for a plan to be able to save my pdf. Had I not chosen to sign up, I believe my work would have not been saved. What compelled me to sign up was that I didn't want to lose the work that I was doing. Overall, I think PDFfiller is a great tool and worth the money; however, some users may not like the mandatory payment in order to see their documents again.
Long N
2018-03-10
So far it is good. I use it for work schedules. Im very busy so havent had a lot of time to explore all the features. When i send my work from home to the work place; i find the security code a little annoying. Also when i purchased it i didnt receive a lower price as lead to believe. Although the price to continue useing it at renewal time wasnt bad.
Sherri
2018-04-30
The obne drawback I find is when I am typing into a field there is no auto return and I suddenly am skipping to other fields. However, it is still a pretty good product.
Mark H
2018-09-25
cool but needs a more user friendly interface. like small pdf for example. An easy converter option, with a file compress option would be cool. But as far as functionality and edit ability, PDF filler produces superior edits and is why I choose it over other products.
Adam
2019-08-05
Great for filling paper on the go What I liked the most of this software is that it is great for filling out paper work online What I liked the least is not many options to choose from as in where to fill out.
Jocelyn G.
2018-09-20
I've been using PDFfiller regularly for over 2 years now, and it works wonderfully. I'm able to upload documents, add fillable lines, and get electronic signatures seamlessly. Customer service is also great - prompt and friendly in attending to any questions or issues. Makes running my business that much easier.
Monica K
2022-05-05
New User but Impressed Just now starting to use, but am thoroughly impressed. I'm sure as I get used to the software it will increase to 5 stars!
Landa
2021-10-05
Flawless Customer Service There was a slight issue with a payment plan I'd signed up with - and by the time I'd made a coffee - it was resolved. Flawless.
Steven Duffield
2021-02-27

Unlock PDF and Secure PDF File for Android

Managing PDF files on your Android device can be challenging, especially when you encounter locked documents. With our Unlock PDF and Secure PDF File feature, you can easily access and protect your important files. This tool simplifies the process, letting you focus on what matters most.

Key Features

Unlock encrypted PDF files effortlessly
Secure your PDF documents with passwords
User-friendly interface for quick navigation
Support for multiple file formats
No cloud connection required for processing

Potential Use Cases and Benefits

Access important work documents without hassle
Share secure files with clients or colleagues
Protect sensitive information from unauthorized access
Organize personal records safely on your device
Ensure compliance with privacy standards

This feature addresses your need for convenience and security. Whether you want to unlock a PDF to view a report or secure personal files, our tool provides a reliable solution. You no longer have to worry about accessing locked content or exposing sensitive data. With just a few taps, you gain control over your PDF files.

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
Now, Open your file explorer, the default one or ES and navigate to the password encrypted PDF file you intend to open. Here select the Open with Drive PDF Viewer option as shown in the above image. Here, enter the password given to you for the PDF file and tap on the Open button.
Drag and drop your document in the PDF Password Remover. Confirm that you have the right to the file and click 'Unlock PDF!'. The decryption process should start right away. Modify your PDF further, or click 'Download File' to save the unlocked PDF.
Click CHOOSE FILE. It's a green button on the right side of the page. Select your PDF file. In the window that opens, go to the location in which your PDF is stored, then click the PDF once to select it. Click Open. Enter the user password. Click UNLOCK. Click VIEW & DOWNLOAD IN BROWSER.

How to Unlock PDF and Secure PDF File for Android - 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