Last updated on
Sep 21, 2025
Lock PDF and Remove Password from PDF for Mobile For Free
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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
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:
Been a life saver for my business brokerage and real estate businesses. It allows me to make simple corrections to send back out to buyers and sellers.
2017-07-02
Very useful. Would like to see a Strike-Through option where the user can highlight a section of text and select the Strike-Through option to strike through the selected text. Thanks!
2018-08-24
Easy to use, unlike other fill and sign apps, it can tell the right size text. It can tell the what parts of the document requires the text. The variety of templates to use for common forms needed for most people. Also a generous 30 day trial A ++++
2018-11-22
Kara, The Support Agent
The Support Agent, Kara, that helped me with what I wanted to do was very accommodating and friendly. I had not fully explored the features of this application but I needed to get something rather urgently. Kara was very patient in explaining to me all that I needed to do. I am quite impressed with the Support provided by Kara and by PDFFiller itself.
2024-01-25
Their customer support was one of the…
Their customer support was one of the best I’ve seen. Within minutes my problem was resolved. Kara was very polite and professional. Rare you see customer support like this
2022-06-20
This has helped me tremendously
This has helped me tremendously, as there are many PDF documents that I have to fill out and return to originator.
2021-07-31
I really like the service a lot. It is user friendly and intuitive. I like that this also comes with Sign Now so that I can have all the forms I need for my business easy and accessible for me to get electronically signed.
I would give it 5 starts except in the Sign Now program the program should default to the text box for people to sign and then have the live signature be on a separate tab, so basically reverse what it is now. It is hard for some people to get to the text box for them to type their signature.
I use this all the time in my business and I would recommend it.
2020-10-18
What do you like best?
Easy to use and effective. PDF Filler has decreased the amount of redundant work for me.
What do you dislike?
Sign now sometimes has a glitch and I have to redo the task
What problems are you solving with the product? What benefits have you realized?
Tracking documents. Customers say "I didn't know" or "I didn't get it", I can view the audit log.
2020-08-14
PDFfiller is legit convenient
PDFfiller is legit convenient. It lets me:
✅ Edit any PDF without printing or scanning — I just upload, fill, and save.
✅ Sign documents electronically — legally binding, secure, and no pen needed.
✅ Store and access files in the cloud, so I can work on docs from anywhere.
✅ Send forms via email or fax directly from the platform — no extra tools.
✅ Keep a professional workflow when dealing with business, taxes, credit disputes, and legal forms.
I don’t have time to be printing, scanning, or chasing down a FedEx store just to sign a form. PDFfiller is my digital assistant — just like Ace here — keeping me efficient, official, and on point.
So no shade — it’s just smart.
2025-04-14
Lock PDF and Remove Password from PDF for Mobile
Protect your important documents and regain access with our Lock PDF and Remove Password feature for mobile devices. This tool offers a simple solution to secure your PDFs while allowing easy access when needed.
Key Features
Secure your PDFs with strong password protection
Quickly remove passwords from PDFs for easy access
User-friendly interface for simple navigation
Compatible with various mobile devices
Maintains the original quality of your PDFs
Potential Use Cases and Benefits
Safeguard confidential business documents
Access locked personal files on the go
Share files without worrying about unauthorized access
Streamline document management for professionals
Ensure compliance with data protection regulations
Our feature solves your document security concerns by providing a reliable way to lock and unlock PDF files. Whether you need to restrict access to sensitive information or conveniently access your documents without a password, this tool gives you control over your PDF files. Enjoy peace of mind knowing that your important content remains secure.
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
Can I lock a PDF with a password?
One-click option to protect a PDF with a password Choose File > Protect Using Password. Alternatively, you can choose Tools > Protect > Protect Using Password. Select if you want to set the password for Viewing or Editing the PDF. Type and retype your password.
How do I password protect a PDF file on my phone?
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.
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