---
title: Fax Send File Types
description: Notifyre support a comprehensive range of fax file types for sending faxes online. View accepted fax file formats and fax file size limits.
---

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1. [Help Center](https://support.notifyre.com/?hsLang=en)
2. [Fax](https://support.notifyre.com/fax?hsLang=en)
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November 19, 2025

# Fax Send File Types

## Learn about the accepted file types for sending faxes with Notifyre.

When sending a fax through Notifyre, it’s important to ensure your document is in a supported format and meets the platform’s size and layout requirements. This helps ensure successful delivery and clear readability for the recipient.

### Document formatting

- Recommend file type: **PDF**
- Ensure your document is sized to **A4 standard dimensions**
- For documents with **images, logos, or detailed content**, enable [High Quality Fax](https://support.notifyre.com/fax/managing-fax-send-quality?hsLang=en) during the send process for improved clarity

### Maximum file size

- The maximum file size for any fax document is **100MB**
- The maximum number of pages per fax is **500 pages**.
- Larger files may fail to upload or send

### Accepted file types for sending via the Online Fax portal

| **File Type** | **Details** |
| --- | --- |
| .pdf | PDF files |
| .doc/.docx | Word files created in Microsoft® Word; Google® Docs; Zoho® Docs **(A4)** |
| .xls/.xlxs | Microsoft® Excel; Google® Docs; Zoho® Docs. Only active worksheets will be faxed. |
| .txt | ASCII Plain Text files |
| .rft | Rich Text Document files |
| .ppt/.pptx | Microsoft PowerPoint Files® |
| .html | HTML Files (rendered using Internet Explorer) |
| .tiff | Tiff files created as Group 3 TIFF, in standard or fine resolution.  Standard resolution: 1728 pixels wide, 1100 pixels vertical (portrait layout) High resolution: 1728 pixels wide, 2200 pixels vertical (portrait layout) |
| .jpg | JPEG image files |
| .gif | GIF image files |
| .png | PNG image files |
| .bmp | Bitmap image files |
| .ps | Postscript Files |

### Accepted file types for sending via Email to Fax

| **File Type** | **Details** |
| --- | --- |
| .pdf | PDF files |
| .doc/.docx | Word files created in Microsoft® Word; Google® Docs; Zoho® Docs **(A4)** |
| .xls/.xlxs | Microsoft® Excel; Google® Docs; Zoho® Docs. Only active worksheets will be faxed. |
| .rft | Rich Text Document files |
| .htm/.html | HTML Files (rendered using Internet Explorer) |
| .tif/.tiff | Tiff files created as Group 3 TIFF, in standard or fine resolution.  Standard resolution: 1728 pixels wide, 1100 pixels vertical (portrait layout) High resolution: 1728 pixels wide, 2200 pixels vertical (portrait layout) |
| .jpg/.jpeg | JPEG image files |
| .png | PNG image files |

### Troubleshooting file upload issues

If your file isn’t uploading or sending correctly:

- **Check the file format** – Ensure it’s one of the supported types listed above
- **Check the file size** – The maximum file size is **100MB**
- **Check the document layout** – Files should be formatted to **A4 size** for best results

 💡 If your file type isn’t listed above or you're still experiencing issues, please contact our support team for assistance.

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