Stay mobile Lock PDF on iPhone For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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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:
Outstanding you can create your own PDF's or download them and fill them out online and then save them print them e-mail and fax them and even SMS them! you can add a digital copy of your signature so that you can actually receive a pdf as an email or e-fax and sign it and send it back a email, sms, fax etc. and you can do it all from any computer or mobile device Otstandig!!!!!!
Blair
2015-03-11
When trying to save a completed document to my hard drive it becomes confusing. I cannot find the saved files anywhere. Other than that the program is great.
jACK
2017-08-09
mostly quite a good thing. I would like to know how to move text after you've placed it on the page, though. That needs to be more intuitive if it's possible.
Andrew S
2018-05-14
Say yes to PDFfiller. I was able to take a 30+ page PDF file, highlight areas of significance, add sticky notes and/or note boxes where I needed to remember a particular point in the lengthy document filled with legal jargon. Which made things SO much easier for me. Although I have listed a few things that I wish were different, overall the product is a great one. I had one difficult experience with a file, but otherwise everything has been amazing. I would absolutely recommend PDFfiller to anyone needing the tools it offers. I had never used a PDF editor before. Simply due to the fact that I had a hard time finding one that wasn't trying to charge me a bunch of money up front. PDFfiller gave me a free 30-day trial. Which is an instant gold star in my books. Aside from the willingness to let it's potential customers try the product out, the product is surprisingly easy to navigate through, and I was able to download a copy of my final product free with the trial. There are two things that I would change if I could. The first thing that I did not care for is honestly just one of those particulars that I would have like to have the option of. That being that the only highlighting option is yellow. While this is not really a big deal, it would be really nice to have the option to select different highlighting options (pink,green,orange,blue,etc.). As a college student, I handle a LOT of PDF files on a weekly basis. Anything from a single page reference list, to a PDF copy of a book that consists of hundreds of pages. For me, color coding highlighted areas makes research points easier to decipher and organize according to relevance to one another. The one thing that I noticed was a bit of a headache to deal with. I uploaded a file that needed updating. I selected a entry point that needed to be changed, and the font size automatically changed from an 8.5 to a 9. I selected the "text size down" option, and it made it a size 8. There is no option to size it back to an 8.5. This created an abnormal look to the line of text, and one or more words were different in size. I would have to go through and individually adjust everything to the same size. This may be a subtle difference in size, but as a Graduate student, these things matter in the grading process.
Elyzabeth S.
2019-09-16
Must Have! This program is awesome for creating new contracts or clients, you can even email it and have them sign online. It automatically charges you for a year so make sure you choose monthly billing if you would like to be billed differently than annual.
Rebecca B.
2023-01-27
Cancelling a subscription can be an intimidating and anxiety creating experience. NOT WITH THESE PEOPLE!!! Today I logged in to my account. ***** linked in as my Chat contact and in less then 1 minute the subscription was taken care of for me!!!! I have had to fight too many providers about cancelling subscriptions so THIS WAS REFRESHING!!! Such a contrast and it makes me want to stay connected with them if I ever need their services again.Don't hesitate to access their services and products.
Harold C
2022-02-14
I used their 30 days free trial I used their 30 days free trial, of course totally forgot about it and was charged for a year subscription without any notice. But I have to say that they reverted the payment within minutes after my request. Honest and nice service!
MARIA
2021-08-04
IT IS VERY CONVENIENT WHEN WE NEED PRIOR YEAR TAX FORMS AT OUR FINGER TIPS. AS FOR ADMINISTRATIVE TEMPLATES, IT IS VERY RESOURCEFUL AND ABLE TO COMMUNICATE THROUGH EMAIL, FAX, ETC. THANK YOU.
GERRI Q
2020-08-16
PDFfiller has been relatively easy to use and been an important tool for the conversion of files to PDF for me, during this time of working from home during the pandemic of Covid-19
Paula L
2020-05-06

Lock PDF on iPhone with no limits

Coping with document management duties on your desktop is a much unsophisticated task, however, when you need to Lock PDF on iPhone, you may bump into issues. It’s not uncommon to find some mobile software poorly-developed or just laggy.

pdfFiller is the leader in online document management, but it doesn't mean it’s complicated to use. Lock PDF on iPhone and much more:

01
Legally-binding signature. Use signature that’s court admissible and has bank-level security and compliance
02
Various supplementary benefits. Notarize your records or send prepared forms right to the IRS in just a few clicks
03
24/7 support. Contact our friendly customer care service if you encounter difficulties while working with the service
04
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
05
High-level security. Protect your data with the latest encryption features according to the most important security standards

The list of supported devices is pretty large, meaning you can Lock PDF on iPhone on any model, including any listed below:

01
iPhone 12
02
iPhone 12 mini
03
iPhone 12 Pro
04
iPhone 12 Pro Max
05
iPhone 11

If you dig deeper into pdfFiller's functionality, you can actually explore even more helpful tools and make on-the-go document management routine considerably more efficient and easy. Consider using it to avoid wasting your energy by carrying your laptop all the way around. Get everything you need for handling PDFs. Register now!

Stay Mobile Lock PDF on iPhone Feature

Stay Mobile Lock PDF on iPhone gives you control over your sensitive documents. Whether you are managing work projects or personal files, this feature secures your PDF files, preventing unauthorized access. With just a few taps, you can ensure your important information stays private.

Key Features

Secure your PDF files with a password.
Easily lock and unlock files.
Compatible with various PDF readers.
User-friendly interface for quick access.

Potential Use Cases and Benefits

Protect confidential business documents while traveling.
Secure personal records, such as medical information, from prying eyes.
Share files safely during collaborations or client meetings.
Keep your financial documents protected against unauthorized access.

By using Stay Mobile Lock PDF, you can tackle the worry of data breaches and unauthorized viewing. This feature not only safeguards your privacy but also gives you peace of mind. You can focus on your work without the fear of exposing sensitive information.

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?
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Once the PDF file opens in Documents app, tap on the Menu button (three dots) in the top right corner to bring up menu at the lower section of your iPhone screen. Choose Set Password. Then type in the same password twice. Finally, hit the Set button to confirm and encrypt your PDF file on iPhone or iPad.

Video instructions on how to Lock PDF on iPhone

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Try the PDF solution that respects your time.
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