How-To Guide

How to Fax Large Documents
Online — Up to 200 Pages

Need to fax a long document? Learn how to fax large files online with tips for splitting, compressing, and sending efficiently.

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Faxing large documents — contracts, medical records, legal filings, or manuals — can be challenging with traditional fax machines. Paper jams, busy signals, and page limits make it frustrating. With usfax.com, you can fax documents up to 200 pages in a single transmission, with automatic splitting for longer files. Here is how to do it right.

Step-by-step instructions

Fax large documents in three steps.

1

Prepare your document

Make sure your document is in PDF format for best results. Remove unnecessary blank pages and compress the file if it exceeds 20 MB. Check that all pages are oriented correctly.

2

Upload to usfax.com

Log in to usfax.com and click Send Fax. Upload your large document by dragging and dropping or browsing your files. The system displays the page count and estimated transmission time.

3

Send the fax

Enter the recipient's fax number and click Send. For documents over 200 pages, usfax.com automatically splits the transmission into multiple sequential faxes to the same number.

Preparing large documents

Follow these guidelines to ensure smooth delivery of large faxes.

Split long documents

For documents over 200 pages, split them into separate files before uploading. This gives you more control over each batch and makes it easier to track delivery confirmations.

Compress large files

Use PDF compression tools to reduce file size. Remove embedded fonts, flatten form fields, and reduce image resolution to 200 DPI — the standard fax resolution.

Check file size limits

Maximum file size is 20 MB per upload. Maximum pages per fax is 200. If your document exceeds either limit, split or compress it before uploading.

Tips for large documents

Convert to black-and-white PDF to reduce file size significantly
Remove blank pages — they count toward your page allowance
Use 200 DPI resolution — higher resolution increases file size without improving fax quality
Send large documents during off-peak hours for faster delivery
Verify the recipient's fax machine can handle long documents before sending
Use the Business plan with unlimited pages for regular large-document faxing

Frequently asked questions

usfax.com supports faxing up to 200 pages in a single transmission. For documents longer than 200 pages, you can split them into multiple faxes.

The maximum file size per fax is 20 MB. If your document exceeds this, compress the PDF or split it into smaller files before uploading.

Yes. If your document exceeds the page limit for a single transmission, usfax.com can automatically split it into multiple faxes and send them sequentially to the same number.

Fax transmission speed is approximately 30 seconds to 1 minute per page. A 100-page document may take 50 minutes to 1.5 hours depending on the receiving fax machine.

Page usage counts toward your monthly plan allowance. The Individual plan includes 200 pages, Professional includes 500, and the Business plan includes unlimited pages. Additional pages are available at a per-page rate.

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