Unlock PDF and Secure PDF File for Android For Free

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Last updated on Sep 20, 2025

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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

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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

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What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
I join the annual personal plan and it says if it is annual you will got 65% discount on the $72. However, I noticed after payment that I did not get any discount.
Ahlam
2017-09-28
What do you like best?
When I fill out the document, I can create automatically on the line.
What do you dislike?
I can't print the documents in the editing process.
Recommendations to others considering the product:
It is difficult to create a various version from original documents.
What problems are you solving with the product? What benefits have you realized?
It is easy to fill out and share the documents, unlike others.
Administrator in Hospitality
2019-01-28
This web site is quick and easy to use… This web site is quick and easy to use and their support is amazing. I have used the live chat when I was in the middle of a project and gotten an answer in minutes. It takes a lot of the stress out of the process.I saw a review on another site warning people not to supply a credit card. The fact that this person found their template on a site that did not warn them it was a paid service is not the fault of PFDfiller. When you got to their web site, they immediately let you know that you can sign up and get a free trial period, then ask for your payment information, which is SOP for online services as far as I know and gives you the option not to use the service if you don't want to do so.
Sue Stade Bergstrom
2019-02-28
4 stars for now 4 stars for now, I will change it once I receive my refund but I am happy with my interaction with their chat support. His name is Ralph, very straightforward , no wasting of time unlike other customer supports I encountered in the past.
Ralyn Joy Alarcon
2024-09-20
At the first, i had some problems with using the application but later on, I learned how to use it, still, I need further study to be more familiar with it
Abdul Ahad A
2023-02-06
I started using PDFfiller 2013 I started using PDFfiller in 2013. Recently, my company started providing a program that was free to me. I canceled my subscription thinking to save some money. It only took 4days to realize I wanted PDFfiller back! This program is so simple and straightforward. I have shared this program with many over the years and they always come back thrilled with it. Lawyers, accountants, I am in real estate and always dealing with leases, riders, applications etc. It is worth the $$!
RK Wood
2021-07-17
This is a great company This is a great company. They offer excellent customer service. When I need them I won't hesitate to do business with them in the future.
Valued Customer
2021-04-02
What do you like best? Everything about PDFFiller makes my days easier. It's affordable, easy to use, and makes any PDF editing absolutely easy and fast. I would definitely recommend PDFFiller to anyone who needs to be able to edit PDFs or make them fillable. Hands down the best program I've ever used! What do you dislike? I haven't found anything about PDFFiller yet that isn't helpful or user friendly. Recommendations to others considering the product: If you need a software that does it all - edits PDF files, helps you to make PDF files fillable, even lets you send out faxes - PDF Filler is what you need! The annual cost is very affordable for all that it offers and I've yet to see, use, or even hear about any other service that offers all that PDFFiiller does. What problems are you solving with the product? What benefits have you realized? The problems that I solve using PDFFiller most is to make PDFs fillable - especially since COVID started and we have more people working from home or trying to fill out documents from home.
Tiffany LaCourse
2021-02-11
It is simple to use however I am unable… It is simple to use however I am unable to remove anything done in Microsoft paint prior to me working on the document.
John White
2025-05-01

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.

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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?
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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

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Best Meets Requirements- Summer 2025