How to Fax From a Windows PC Without a Modem
Windows still ships the old Windows Fax and Scan program, but it only works if your PC has a dial-up fax modem wired to a phone line — hardware almost no modern computer has. The practical route uses the tools every Windows 10 and 11 machine already has: the Windows Scan app to capture paper, the built-in Print to PDF driver to turn any printable document into a fax-ready file, and File Explorer to drag that file into the browser. Send FAX Mail then sends it over a real fax connection and emails you a receipt. A 7-day free trial covers your first pages, and there is no modem, no phone line, and nothing to install.
What you need
- ✓A Windows 10 or 11 PC with a browser and the Windows Scan app or Print to PDF
- ✓The document as a PDF, image, or anything you can print
- ✓A Send FAX Mail account (the 7-day free trial includes first sends)
- ✓The recipient's fax number with country code for international destinations
How to fax from Windows
- 1To capture paper, open the Windows Scan app, pick your scanner, choose PDF as the file type, and scan each page
- 2To fax an existing document, open it, choose Print, and select Microsoft Print to PDF to save a clean fax-ready file
- 3Open File Explorer and confirm the PDF is where you expect it, such as the Scans or Documents folder
- 4Open your browser, sign in to Send FAX Mail, and start a new fax
- 5Drag the PDF from File Explorer onto the upload area, or click upload and browse to it
- 6Enter the recipient's fax number, send, and look for the email delivery confirmation
Windows limits worth knowing
Windows Fax and Scan is legacy software built around a hardware fax modem and an analog phone jack; on a typical laptop with no modem it simply has nothing to dial through, which is why an online fax replaces it. The Windows Scan app's built-in OCR can make a searchable PDF, but a fax transmits the page image regardless, so save at around 200 to 300 dpi in black-and-white for the sharpest text and the smallest file. If a document will only print and not save, use Microsoft Print to PDF as the printer — it produces a fixed page you can upload, unlike a raw screenshot that may crop the margins.
| Aspect | On Windows | On other platforms |
|---|---|---|
| Legacy fax tool | Windows Fax and Scan exists but needs a modem and phone line | An online fax sends from any browser with no extra hardware |
| Turning a document into a file | Microsoft Print to PDF converts anything printable | A Mac uses Preview's Export to PDF for the same job |
| Scanning paper | Windows Scan app with a connected scanner | A Chromebook has no scanner app and uses a phone instead |
Faxing from Windows — FAQ
Only if your PC has a fax modem connected to an analog phone line, which almost no current laptop or desktop includes. Without that hardware the program cannot dial out. An online fax service sends from your browser instead, so you do not need a modem or a landline.
Open the document, choose Print, and select Microsoft Print to PDF as the printer. Windows saves a fixed PDF that you then upload. This works for web pages, Word files, spreadsheets, or anything else with a print option, and it keeps the page layout intact.
In the Windows Scan app, choose PDF as the file type and scan in black-and-white at about 200 to 300 dpi. A fax is one-bit line art, so color or very high resolution only enlarges the file without improving how the text reads on the receiving machine.
No. Send FAX Mail runs in Edge, Chrome, or Firefox, so you sign in, drag your PDF from File Explorer onto the upload area, and send. The Windows Scan app and Print to PDF are already part of Windows, so nothing extra is installed.
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