Stay mobile Fax 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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Last updated on Sep 20, 2025

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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
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

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:
This is a very good program but the monthly fee is high. It would be well worth the cost if you were filling out hundreds of pdfs each month, but for one or two forms, it's hard to justify the expense.
Anonymous Customer
2014-09-11
No way to easily add additional pages in a template I used. Had to keep erasing everything to start new page. “Next” button skips all over the page, so this isn’t tablet-friendly. Waste of my annual subscription fee.
Robbin M
2018-08-23
PDFfiller is fast and easy to use. I load my documents, make corrections, save and print in a matter of minutes. I use PDFfiller often & recommend it highly.
Pamela C
2019-07-25
I think this is the most user friendly app and the customer service experience has been outstanding. I have MS and am computer challenged. Thank you for making my life a little easier.
Deana
2019-11-11
I loved using the program. It helped on saving paper while allowing to update documents without having to print, use white out, and scan the updated document. It was really the only feature I used, but i know there was so much more to the program. I would love if they created a pay option that was cheaper than basic or reduced the price of basic for those of us who just need it for one or two functions. It was very easy to use and i wish i needed it for other things. Overall still a great program and i would recommend it to anyone. I am only giving it 4 stars due to me just not needing it for a whole lot.
Qo
2020-03-31
What do you like best?
Ease of use! Very intuitive program that does NOT require a lot of training to use.
What do you dislike?
I use the program infrequently in my present roll, so was surprised by the page lay-out change. It was a bit more difficult to simply pick it up and understand the new format.
What problems are you solving with the product? What benefits have you realized?
I use PDFfiller for city and county land-use applications. Having the ability to complete these varying forms simply, and have them stored for future use is invaluable!
User in Civil Engineering
2019-02-27
What do you like best?
I like the choice of fonts because one can add changes or complete empty fields to a pdf and by using a different font from the original text it is clear that the additions are different from the original.. Also I like that one can add circles, check marks, "X" to a doc. And can erase portions of text.
What do you dislike?
I dislike that you have to pay extra to add or subtract pages from a pdf.
What problems are you solving with the product? What benefits have you realized?
My hand writing is very poor. So I use PDFiller to compensate for this deficiency..
Mark Flynn
2019-05-21
its a good software but the interface… its a good software but the interface has to be friendlier. other than that, it's good. thanks for the free trial.
abdul munaf
2022-01-07
A good program (and nice people) A good program, a bit too comprehensive for me (in some ways), and a few (to me) important features were missing. After my trial period, I was accidentally invoiced for a full year, the support department solved that nicely.
Gert Holmfred
2025-03-26

Can you really Fax PDF on iPhone?

Dealing with document management routine on your computer is a rather straightforward task, however, when you need to Fax PDF on iPhone, you can run into some issues. It’s not unusual to find some mobile software underdeveloped or just laggy.

pdfFiller is a web-based PDF editing tool with advanced functionality for mobile users that allows you to Fax PDF on iPhone just the same way it does on your laptop or computer. It is possible to do both and get your documents immediately synced through the cloud storage. Use the website, desktop application, or the mobile one. Check out the list below to learn the best features available on smartphones:

01
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
02
Legally-binding eSignature. Use eSignature that’s court admissible and has bank-level security and compliance
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
Various supplementary benefits. Notarize your records or send prepared forms right to the IRS in just a few clicks

Deal with documents like a professional. Do business right from your browser or install the application. Despite of your choice, all your data is protected with the most up-to-date encryption features, so that nobody could get not authorized access to your data. Don't wait, take advantage of professional document management now!

Stay Mobile: Fax PDF on iPhone Feature

Stay Mobile empowers you to fax your important documents directly from your iPhone. This feature is designed to enhance your workflow by allowing quick and easy access to faxing capabilities anywhere and anytime.

Key Features

Send and receive faxes directly from your iPhone
Upload PDFs from your device or cloud storage
User-friendly interface for seamless navigation
Track fax status with real-time notifications
Secure transmission of sensitive documents

Potential Use Cases and Benefits

Perfect for professionals needing to send contracts or agreements on the go
Ideal for remote workers requiring quick faxing solutions
Helps businesses streamline document handling without the need for a physical fax machine
Supports fast communication for legal, medical, and financial documents

By using the Stay Mobile Fax PDF feature, you solve the problem of delayed communication. No longer do you need to be tied to a desk or a traditional fax machine. With just a few taps, you can send and receive faxes, ensuring that your important documents reach their destination promptly and securely.

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
You can send a fax from your iPhone using a third-party app. Most fax apps are free, but you need to pay a subscription fee to send or receive faxes within the app. To send a fax, you'll need to know the fax number and then write, scan, or attach the document.
There are four main ways to fax a PDF: Through an online fax service, fax software, a fax machine that allows you to fax from your computer, or the “old fashioned way” of printing the PDF off and sending it through a fax machine.
Faxes cannot be sent directly from iPhone phone numbers to fax machines or vice versa. You'll need a third-party fax app or internet service to make it work. But don't worry, there are loads of options out there designed to make faxing from your iPhone super quick and easy.
Download and install FAX. PLUS app from Apple App Store (Download Now) Open the app and use your Gmail account to register for free (You need to verify your phone number to complete the registration) Go to the Send Fax tab and type the recipient's fax number in the To field.

#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