Last updated on
Sep 20, 2025
Unlock PDF and Secure PDF File for Android For Free
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Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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.
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.
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
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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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
Only used twice but each time I was pleased with the features and ease of use. The only negative is that it is difficult to save files. I had to use a two step process of saving to PDF Filler then copying to my local drive.
2015-01-27
PDFfiler allowed me to create a far superior MO Real Estate Disclosure form. It allowed me to edit to my heart's content, rather than scratching handwritten stuff out and ending up with such a mess that i had to hand write another copy. The end result was far more professional looking than a handwritten form. About a 5 minute learning curve and the software functioned perfectly. After editing, I was able to save the pdf to my computer, send it by email, print it, and some other stuff that I didn't use. PDFfiler can also get remote signatures.
2015-06-26
Excellent, Excellent tool for business traveler and mobile home office. Just used it to sign documents while traveling and found it very usefully for my purpose.
Can't be any happier with the ease of operation and format.
Love it.
Pete
2017-05-02
It.s a verry usefuly app, but i think is a little too expensive! So, please do something with the prices! We are glad to work with you! Thanks for your work.
2019-08-02
Thank you for your services
Thank you for your services! I’ve been working on a very important document to correct my military records, for seven years I’ve been working towards correcting an Ilegal discharge from active duty from the Army. In February I received news that changed my while direction so I started over from scratch. My draft is now complete and now I have all the evidence and events storyboard complete. There was a very important PDF from 2012 that is no longer available on the .gov website so I resorted to Google and found it on your site. Your site helped me to gather the necessary blank PDF forms that proved they did indeed break thelaw. It was a lifesaver for me!
2019-09-28
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!!
2017-11-14
A great online software
A great online software, easily linkable with Google Drive. You can modify as far as you want your documents, make signature and so much modifications.
Really useful and safe for any documents.
2021-11-17
This is a great service
This is a great service. Easy to use. Easy to upload, edit and share documents you need others to review. Also extremely easy to fax and there's even a service to mail the document within the U.S. from your computer from anywhere in the world. Highly recommend it.
2021-02-04
It works!
The application is relatively intuitive to use. It was the only one that offered the full PDF fillable experience under a free trial to really test it. I recommend this program over others I have tried.
2025-05-18
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.
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
How can I open password-protected PDF file in Mobile?
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.
How can I unlock a PDF file for free?
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.
How do I unlock a secured PDF file?
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
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