Unlock PDF and Lock PDF for Android For Free

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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 got confused a couple of times when using PDFfiller, but their customer support was outstanding; they immediately responded and were very helpful. PDFfiller is a solid solution for filling out yearly tax paperwork on my Mac. I'll be using it every year now.
Sean F
2015-01-20
Everything has been great, with the exception that it takes a while to open up the documents on mybox. There should be a feature for ''QUICKVIEW" of the document you want to open.
rigo
2017-12-04
What do you like best?
How easy I can manage PDF documents (fill, convert to an Office document, and signatures). I'm very glad!!
What do you dislike?
Nothing, it's easy to use and fast. I recommend this tool to anybody.
What problems are you solving with the product? What benefits have you realized?
I work in a Legal Department and we review a lot of contracts on a daily basis. Most of the documents came in on PDF format, so using PDF filler to convert the file to an MS Office is easy.
Maria de los A Martinez-Rivera
2019-02-25
Easy to use and efficient Excellent The software is easy to use and the efficiency is definitely worth the price. I would recommend this product to friends and colleagues. I haven't experienced any issues with the product.
Kia B.
2019-03-12
Adobe for Life Overall, it's an amazing feature of the Adobe family that comes in handy for myself and especially in my industry where contracts are signed and requested frequently. So you're working on a project, job, whatever and you get a form that needs to be filled out, signed, and returned. It's a PDF file which is great because nothing can be edited off the original form. You're only responsibility is to fill it out and send it back, but you don't have a printer available, there's no fax machine around, and this form needs to be completed ASAP. The PDF filler is an amazing tool that gets the job done. Not only does it allow you to fill in information on any PDF file, it also allows you to upload your signature to docs as well. So while you can add your information to any pdf file, some of the files don't always allow for ease of filling out. For example, some forms allow you to type into blank spaces where words and information are supposed to go, while others have distortion issues and don't always allow for certain spaces to be typed into.
Tomara J.
2019-03-10
this app has allowed me to fill in… this app has allowed me to fill in documents and get them to my lawyer even while 5000 miles away while traveling for work
Eddy
2023-06-23
Finally! A way for me to fill things out properly without printing! I am very happy so far with this experience because not only does it allow me to fill out pdf's online and not waste paper and look unprofessional, it allows me to CREATE a pdf in the exact manner that I want it to look. I will use it for some of my professional documents on a regular basis!
Art With Stephens
2022-06-13
Great app..easy to use and saved me a… Great app..easy to use and saved me a lot of headaches during a move when I didn't have access to a printer.
Cheryl Charron
2021-09-27
so far everything is good to use and very easy, I need to explore more but I do not have time. A little confused with the folders but I will learn very soon.
Edgar B
2020-06-26

Unlock PDF and Lock PDF for Android

Unlocking and locking PDFs on your Android device has never been easier. With our user-friendly feature, you can manage your PDF documents securely and efficiently.

Key Features

Easily unlock PDF files to access content without restrictions
Securely lock PDF documents to protect sensitive data
Simple interface for quick and straightforward document management
Compatible with various PDF formats for versatility
No internet connection required for offline use

Potential Use Cases and Benefits

Unlock PDFs for editing, printing, or sharing important information
Lock PDFs to safeguard private documents like contracts or personal files
Manage work-related documents efficiently for better organization
Share PDF content freely while keeping original files secure
Reduce frustration when accessing password-protected files

Our unlocking and locking feature solves your PDF problems by streamlining document access and security. You can quickly unlock files to work with them or lock files to ensure only authorized individuals can view them. This gives you control over your documents, enhancing both accessibility and protection.

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 Use the Unlock PDF and Lock PDF for Android Feature

Unlock PDF and Lock PDF are two useful features of the pdfFiller product for Android. These features allow you to easily unlock and lock PDF files on your Android device, providing you with greater control over your documents. Here is a step-by-step guide on how to use these features:

01
Open the pdfFiller app on your Android device.
02
Sign in to your pdfFiller account or create a new account if you don't have one already.
03
Once you are signed in, you will see the main dashboard of the app.
04
To unlock a PDF file, tap on the 'Unlock PDF' option.
05
You will be prompted to select the PDF file you want to unlock. Tap on 'Choose File' and browse through your device's storage to locate the PDF file.
06
After selecting the file, tap on 'Unlock' to start the unlocking process.
07
Wait for the app to unlock the PDF file. This may take a few seconds depending on the size of the file.
08
Once the unlocking process is complete, you will be able to access the unlocked PDF file on your Android device.
09
To lock a PDF file, tap on the 'Lock PDF' option.
10
Similar to unlocking, you will be prompted to select the PDF file you want to lock. Tap on 'Choose File' and locate the PDF file on your device.
11
After selecting the file, tap on 'Lock' to start the locking process.
12
Wait for the app to lock the PDF file. Again, the duration will depend on the file size.
13
Once the locking process is complete, the PDF file will be secured and protected with a password.
14
You can now access the locked PDF file on your Android device, and it will require a password to open.
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To unlock or lock more PDF files, simply repeat the above steps for each file you want to modify.

Using the Unlock PDF and Lock PDF features on your Android device with pdfFiller is a convenient way to manage the security of your PDF files. With just a few taps, you can unlock or lock your PDF files and ensure their privacy. Start using these features today and experience the ease and control they provide!

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
Choose Tools > Protect > Encrypt > Remove Security. Remove Security: The options vary depending on the type of password security attached to the document. If the document has a Document Open password, click OK to remove it from the document.
Start by downloading the app from Google Play. Next, open it > password protection > import the PDF from your device memory. If you don't see any directory, clear the app data and try again. Now, you'll see two password option owner password and user passwords.
Download and install PDF Utilities from Google Play. Make sure that you've already downloaded the PDF file of which you want to remove the password. Open the PDF Utilities app and tap Select next to Select PDF. Once you've located your file, select it and tap Start.
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.
Open the PDF Utilities app and tap Select next to Select PDF. Once you've located your file, select it and tap Start. You'll get a pop-up asking you enter the PDF password.

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