Stay mobile Password Protect A PDF on iPhone For Free

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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
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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 found this by accident trying to find a 1500 free medical form but wasn't looking forward to filling it out by hand. We are a dental office just starting to use medical coding for new procedures. Plus I'd like to put our new patient forms on our website for patients to fill in electronically! Thank you!
Nancy Hershey, Office M
2016-04-15
PDFfiller is excellent I love how easy it is to use when filling out multiple page forms such as medical forms. Price Point. If you don't do a lot of forms/saving forms you should pay a lessor amount.
Tom M.
2019-01-24
It works like a charm Copy, paste and cut text on PDFs in the document editor. " At first I thought they were scammers, but I took the risk and paid for what they asked for. Now I use almost everything they offer. I like that I do not need to download and upload the document back. I would like to print the document immediately after editing. Now I need to save it first and then I can print the document
Lars G.
2018-02-20
Great to use especially working from home I have been working from home and Sarah PDF has been trying amazing. It is very easy to use and the way I am able to merge my documents and download them is great.
Ponta Rodgers
2024-01-17
Would be better if you didn't have to input personal card information for a one time use on a free item. Other than that, good experience because it was easy to navigate.
Keana P
2024-01-03
Very simple to use Very simple to use, convinient and saves alot of time. Thereare many features such as signing, initials, drawing, text to name a few. I would recommend pdffiller to anyone who would like to modify a PDF document with ease.
Ridwaan Ramjan
2023-04-10
Love the software Love the software. Earlier I wrote that the software was difficult to navigate. I would like to rescind that statement. It was user error on my part. The software is very easy to navigate and I really, really like this product a lot.
Kimberly Simmons
2021-11-30
Only used a few times Only used a few times, but so far no major issues. The only pain point, I would say is the editor...I am still getting in practice. Overall, this is a very good and useful tool.
Crystal Pedigo
2021-09-01
What do you like best? Really a good tool to utilize for editing and transforming the documents. What do you dislike? Erasing any content in the document is little difficult. Recommendations to others considering the product: Very good and useful product to use. What problems are you solving with the product? What benefits have you realized? we used this tool mostly for the editing and get some digitizing the document.
Administrator in Information Technology and Services
2020-08-14

Password Protect A PDF on iPhone without limits

Are you fed up with carrying your laptop around everywhere you goonly to be able to open and sign that crucial document? Perhaps you have your clients backing off just because you didn’t have the ability to Password Protect A PDF on your iPhone? Here at pdfFiller, we can offer you a solution that frees you from relying on a software with no cloud support, so that you can work from any device, anywhere.

pdfFiller is a web-based PDF editor with advanced functionality for smartphone users that lets you Password Protect A PDF on iPhone just like you would on your desktop. You can easily do both and get your documents easily synced from the cloud storage. Utilize the web app, desktop app, or the mobile app. Check out the list below to learn the best features available on mobile:

01
Various supplementary benefits. Notarize your records or send prepared forms right to the IRS in just a few clicks
02
All-round compatibility. Forget about using different tools for computers and mobile phones. Use a universal solution and keep all your records in one storage
03
High-level security. Protect your data with the latest encryption features according to the most important security standards
04
24/7 support. Contact our friendly customer care service if you encounter difficulties while working with the service
05
Legally-binding eSignature. Use eSignature that’s court admissible and has bank-level security and compliance

Deal with documents like a professional. Do business right from your browser or install the application. Regardless of your choice, all your data is protected with the latest encryption features, so that nobody can get unwanted access to your data. Don't wait, benefit from professional document management now!

Stay Mobile: Password Protect A PDF on iPhone

Keep your documents safe with Stay Mobile's Password Protect A PDF feature on your iPhone. This tool allows you to easily add password protection to your PDF files, ensuring that only authorized users can access sensitive information.

Key Features

Simple and user-friendly interface
Add custom passwords to your PDFs
Encrypt your files with industry-standard security
Easily share protected documents
Compatible with various PDF readers

Use Cases and Benefits

Protect personal information in financial documents
Secure business proposals before sending
Safeguard sensitive client data
Maintain privacy for academic research
Control access to shared resources

With Stay Mobile's password protection, you no longer have to worry about unauthorized access to your PDFs. This feature allows you to confidently share your documents while ensuring they remain secure. Say goodbye to the anxiety of data breaches, and enjoy the peace of mind that comes from knowing your files are protected.

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
How to set a password to protect PDFs on Android. Begin by navigating to the password protection page on your preferred browser. Click the Select A File button to choose and upload your PDF. Create a password and enter the password, then retype it to confirm.
0:38 2:43 How to Hide Files and Photos on iPhone - YouTube YouTube Start of suggested clip End of suggested clip Then scroll through the options until you find the option to hide the photo. The photo will beMoreThen scroll through the options until you find the option to hide the photo. The photo will be placed in a special hidden album which can be accessed in the albums tab.
You can lock a PDF or image so that it can't be edited or deleted. If you own a locked document, you can edit the document after unlocking it. Others can change the document's contents only by creating a duplicate of the document and editing the duplicate. Open Preview for me.
Folder Lock lets you password-protect your personal files, photos, videos, documents, contacts, wallet cards, notes and audio recordings in your iPhone.
You can assign a password to a document so that only those who know the password can open the document. Passwords can consist of almost any combination of numerals, capital or lowercase letters, and special keyboard characters. A document can have only one password.

Video instructions on how to Password Protect A PDF on iPhone

#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