Save the Word file as a PDF first, then upload the PDF to an online fax service such as sendfaxfast.com, enter the fax number and pay for that one fax. A PDF keeps your layout exactly as you see it. You don't need a fax machine, a modem or a subscription.
Word has no fax button that works without extra hardware or a fax provider. Older guides mention a "Send as Fax" option or Windows Fax and Scan; both need a fax modem and phone line, or a provider account. Saving as PDF and sending online is quicker.
Why PDF and not .docx?
A Word file can look different on another computer: other fonts, shifted lines, a page break in the wrong place. A PDF freezes the layout. What you see in the PDF is what the recipient gets on paper.
Windows
- In Word, click File > Save As (or Save a Copy).
- Choose PDF as the file type and save.
- Open sendfaxfast.com, upload the PDF and enter the fax number.
Mac
- In Word, click File > Save As and choose PDF as the file format. Alternatively use File > Print and Save as PDF.
- Upload the PDF on sendfaxfast.com and send.
Phone or tablet
In the Word app, open the document and use the share or export option to save a PDF copy. Then upload it on sendfaxfast.com in your browser. If the file came by email, see how to fax from Gmail or from Outlook.
Tips for a readable fax
- Use a normal font size (11 pt or larger). Very small text gets blurry on the receiving fax machine.
- Avoid colored backgrounds and light gray text.
- Add a cover page if the recipient expects one. Our free cover sheet helps, and this guide explains what to include.
- Need a signature? Sign on screen after uploading on sendfaxfast.com.
What does it cost?
| Fax type | Pages | Price (USD) |
|---|---|---|
| Short fax | 1–5 | $2.89 |
| Long fax | 6–20 | $3.99 |
| XL fax | 21–40 | $5.69 |
| XL Fax Plus | 41–100 | from $7.18 |
Prices per fax as of October 2026, the same for the US & Canada (+1), Australia (+61), New Zealand (+64), and 39 more supported countries. XL Fax Plus costs $5.69 plus $1.49 for each started 10 pages beyond 40. Maximum 100 pages per fax. Single faxes need no account and no subscription.
Frequently asked questions
Can I fax directly from Microsoft Word?
Only with a fax modem and phone line or an account with a fax provider. Without them, save the document as PDF and send it with an online fax service.
Can I upload a .docx file to sendfaxfast.com?
sendfaxfast.com accepts PDF, JPG and PNG. Save your Word document as PDF first; this also keeps the layout intact.
Will my formatting stay the same?
Yes, if you send a PDF. Colors become black and white, so check that text on colored areas is still readable.
Can I fax several Word documents at once?
Yes. Save each as PDF and upload them together. They are combined into one fax in the order you choose.