Extend Fax Format 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
Note: Integration described on this webpage may temporarily not be available.
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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:
Support person was very professional and had a great deal of patience. Recommend some kind of tutorial or steps for getting started before filling a form. For example to edit steps 7, 8, 9. To save steps 3,4,5, etc. It would be great if a hot line number was available in some cases. Thanks again for all of your assistance. I look forward to using your service again in the future and would recommend your product highly.
Earl G
2016-12-29
some good some bad cause need to change size of pics as my constant contact only takes jpeg. can't use your address book as i don't use my mac mail use verizon so not friendly with this stuff makes it harder to use overall.
Phyllis Francene L
2016-12-29
The obne drawback I find is when I am typing into a field there is no auto return and I suddenly am skipping to other fields. However, it is still a pretty good product.
Mark H
2018-09-25
It´s very complete, For me is the best online PDF manager, but i don´t have money to pay the service, I live in Argentina and I think that this service could works with adds to solvent the development
Antonio
2019-02-19
Makes My Job Easy I use PDFfiller to create contracts and purchase orders. For contracts, I typically input data into Excel, and then use PDFfiller to create the finished contract from my Excel data. For purchase orders, I use PDFfiller to edit document information, highlight items, and sign the document. This saves me the hassle of having to print out documents, edit them by hand, and then scan/fax them. Very happy with PDFfiller, as it most certainly makes my job easier. PDFfiller has all the features that I need for my documents: adding a logo, highlighting, and drawing. I also think that it's great how you can seamlessly use Excel data to fill out forms automatically. This is especially helpful when creating contracts. The price is a little steep for what I see as somewhat of a basic software concept; however, it's worth it in my opinion. There is also a decent learning curve, but once you get the hang of all features, you can automate things and fill out your PDFs very quickly.
Verified Reviewer
2018-10-14
I find this method is the best way to… I find this method is the best way to do past years takes. Fill it, save it, print & mail. Great product!!
Lynn M Eisen
2020-11-10
I am a relatively new user to pdffiller, but have found the platform user friendly and does exactly what I need it to. Helping me modernise a lot of statutory requirements for e-signatures and template creations. When I experienced issues loading documents due to permissions through my work network, the support team at pdffiller responded quickly and continued assisting myself and co-ordinated with my employers IT support function to resolve it within 24 hours, allowing me to get on with my job.
Calum R
2020-09-25
This is a great program This is a great program. If i didn't have a similiar program as part of a package, i would have kept it. Definitely recommending to friends looking for a user friendly and affordable program though. Thanks again!
Kim Dunn
2020-07-14
This is my first time dealing with PDFFILLER! There were some issues and they quickly assisted in resolving the areas in question . I would recommend them to business professionals and someone like me that has a periodic need for administrative documents.
JAMES K
2020-05-03

Instructions and Help about Extend Fax Format For Free

Extend Fax Format: easy document editing

Having the right PDF editing tool is essential to enhance the document flow.

If you hadn't used PDF file type for your documents before, you can switch anytime — it's simple to convert any other file format into PDF. Multiple different files containing different types of content can also be merged within one PDF. Using PDF, you can create presentations and reports that are both detailed and easy-to-read.

Though numerous online solutions provide PDF editing features, only a few of them allow adding digital signatures, collaborating with other users etc.

With pdfFiller, you can annotate, edit, convert PDF documents into other formats, fill them out and add a digital signature in one browser tab. You don’t have to download or install any applications.

Use one of these methods to upload your form template and start editing:

01
Drag and drop a document from your device.
02
Search for the form you need from the online library.
03
Open the Enter URL tab and insert the hyperlink to your sample.
04
Upload a document from a cloud storage (Google Drive, Box, Dropbox, One Drive and others).
05
Browse the Legal library.

Once you uploaded the document, it’s saved and can be found in the “My Documents” folder.

Use editing tools to type in text, annotate and highlight. Change a document’s page order. Once a document is completed, download it to your device or save it to cloud. Collaborate with other users to fill out the fields. Add and edit visual content. Add fillable fields and send to sign.

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 might need to dial an extension to reach a fax number. FAX. PLUS makes it easy to send fax to numbers with extension. To send a fax to an extension go to to send fax tab, enter your number, followed by a * and then the extension you wish to dial.
If your business' fax machine has trouble sending or receiving faxes, a possible source of the problem is the phone line itself. Fax machines require a connection that is free from static and line noise to connect. Poor quality connections will prevent the fax machine from working properly, if at all.
Making sure that the line is plugged into the correct jack may resolve the issue. Plug in a telephone to the wall jack. If the line was plugged into the proper jack on the fax machine, unplug the line from the wall and plug in a telephone. Pick up the phone's receiver and listen for a dial tone.
Whenever we've found a really busy (or no answer) fax line, it's usually because we have the wrong number. A fax number is just a phone number, and one wrong number will connect you with someone else's phone. Double check that number first, just in case.
Sometimes, “no answer” notification means that your fax machine did not receive a delivery confirmation signal from the other machine, so receipt was not verified. In other words, it may have sent, but for one reason or another, the receiving machine failed to notify your machine that receipt was actually confirmed.
The country code (the number 1 for US phones and fax numbers) will also sometimes need to be dialed before local numbers but only when the area code is also required. You will often also need to dial 9 before dialing long distance numbers.
Dial a leading '1' when sending a fax only if you would dial a '1' for a regular phone call. As fax works over the phone network, all fax numbers are simply phone numbers and should be dialed the same way as a regular phone call. When calling long distance within the United States and Canada: The leading '1' is added.

#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