How to Fax Multiple Pages at Once (No Jams) - 2026 Guide

By Sarah Martinez · Published January 25, 2025 · Updated June 8, 2026 · 8 min read

You have a 30-page contract to fax. You stand at the machine, feeding pages one at a time, praying nothing jams on page 28. Or you send them as 10 separate faxes and the recipient calls you saying pages are missing.

There is a better way. Faxing multiple pages correctly comes down to one rule: combine everything into a single PDF file before you send.

This guide covers every method — from your phone, computer, or physical fax machine — with step-by-step instructions.

The Golden Rule: One PDF, One Fax

Before diving into the how-to steps, here is the principle that prevents 90% of multi-page fax problems:

Combine all pages into a single PDF, then send that file as one fax.

When you send a single PDF, the fax service dials the recipient once and transmits all pages in order as one continuous stream. The pages arrive together, in sequence, and print out as a single document stack.

When you send 10 separate faxes, each one requires a separate dial attempt, the recipient's machine can interleave your pages with incoming faxes from other senders, and any one of them can fail independently.

Method 1: Fax Multiple Pages from Your Phone

Faxing a multi-page document from your phone is the fastest and most reliable method for most people.

Using the mFax App (iPhone & Android)

mFax handles multi-page faxes natively — you can upload a multi-page PDF, attach multiple image files, or scan several pages directly in the app.

Scanning a Multi-Page Document on iPhone

If you have physical paper pages to fax, scan them directly into a single PDF:

1. Open the Notes app and create a new note.
2. Tap the camera icon → Scan Documents.
3. Scan each page in order — the app automatically adds each scan to the same document.
4. When finished, tap Save. You now have a single multi-page PDF in your note.
5. Tap the PDF → Share → save to Files, then upload to mFax.

Alternatively, use the Files app: open a folder, tap the three-dot menu → Scan Documents for the same result.

Scanning Multiple Pages on Android

1. Open Google Drive and tap the + (New) button.
2. Select Scan.
3. Scan each page. After each scan, tap the + button to add the next page.
4. When done, tap the checkmark to save — Google Drive saves all pages as one PDF.
5. Open mFax, tap Send Fax, and select the PDF from Google Drive.

Method 2: Fax Multiple Pages from Your Computer

From a Windows PC

If you have a multi-page PDF ready:

1. Go to mFax.to and log in.
2. Click Send Fax.
3. Click Upload File and select your PDF.
4. Enter the fax number and click Send.

If you need to combine multiple files into one PDF first:

1. Open all the documents you want to fax.
2. In each document, go to File → Print.
3. Select Microsoft Print to PDF as the printer.
4. Print each file to a separate PDF.
5. Then combine them using the free mFax Merge PDF tool — no download required.

From a Mac

If you have a multi-page PDF ready:

1. Go to mFax.to, log in, and send as usual.

If you need to combine multiple files:

1. Open the first PDF in Preview.
2. Go to View → Thumbnails to open the sidebar.
3. Drag the second PDF's thumbnail pages into the sidebar. Rearrange as needed.
4. Go to File → Export as PDF to save the combined file.
5. Upload the combined PDF to mFax and send.

If you have image files (JPG, PNG, screenshots):

1. Open all images in Preview (select all, right-click → Open With → Preview).
2. In Preview, select all images in the thumbnail sidebar (Cmd+A).
3. Go to File → Print → PDF → Save as PDF.
4. This creates one PDF with all images on separate pages.

Method 3: Fax Multiple Pages from a Physical Fax Machine

If you're using a traditional fax machine, look for the ADF (Automatic Document Feeder) — the tray at the top of the machine where you stack multiple pages.

How to Use the ADF

1. Stack your pages in order, face-up (or face-down depending on the machine — check the arrow diagram on the tray).
2. Load them into the ADF tray. Most machines hold 20–50 pages at a time. Do not overfill.
3. Dial the fax number on the keypad.
4. Press Send or the Start button.
5. The machine feeds each page automatically and transmits them in sequence.

ADF Tips to Prevent Jams

• Fan the pages before loading — flip through the stack to separate any stuck sheets.
• Check for dog-ears and folds — bent page corners are the #1 cause of jams.
• Remove staples and paper clips before loading.
• Don't mix page sizes in one transmission if you can avoid it — a mix of letter and legal sizes causes misfeeds.
• Keep the ADF clean — a dirty roller causes slips and double-feeds. Wipe with a dry lint-free cloth.

Using the Flatbed Scanner (When There's No ADF)

If your machine only has a flatbed glass scanner (no document feeder), you must place each page manually:

1. Place page 1 face-down on the glass.
2. Dial the fax number and press Send.
3. The machine will scan and send page 1, then prompt you to add the next page.
4. Place page 2 and confirm when asked.
5. Repeat until done, then press Finish or Done.

This is slow for large documents. If you regularly fax multi-page documents without an ADF, switching to an online service like mFax will save significant time.

How Many Pages Can You Fax at Once?

The limit depends on your method:

For most documents — contracts, medical records, tax forms — you will stay well within any limit. Issues typically arise with high-resolution scans or photo-heavy documents.

Tips for Sending Large Faxes Successfully

1. Compress Your PDF Before Sending

High-resolution scans create large files. A 200-page document scanned at 600 DPI might be 50MB — too large for most fax services.

Compress before sending:

• Use mFax's free Optimize PDF tool to reduce file size with one click.
• In Adobe Acrobat: File → Reduce File Size.
• Target: under 10MB for most fax services; under 20MB for mFax.

For fax purposes, 150–200 DPI is more than enough quality. Anything higher is overkill for text documents.

2. Check Page Orientation

Rotate any sideways or upside-down pages before sending. A page that prints horizontally on a recipient's fax output is unreadable and may cause confusion about whether the document is complete.

In Preview (Mac) or Adobe Acrobat, rotate pages before exporting: View → Rotate or right-click a page thumbnail → Rotate.

3. Verify Page Order Before Sending

Preview your combined PDF before uploading. Scroll through every page to confirm:

• Pages are in the correct order.
• No pages are missing from the middle.
• No duplicate pages snuck in.

One minute of preview saves a "did you get everything?" call on the other end.

4. Add a Fax Cover Sheet

For multi-page faxes, always include a fax cover sheet as page 1. Include:

• Total page count (including the cover sheet): "Page 1 of 31"
• Your name and return fax number
• Recipient's name and department
• Brief description of the document

This tells the recipient immediately if pages are missing and who to call. Use the free mFax cover sheet generator if you need a template.

5. Account for Transmission Time

Traditional fax runs at roughly 1 page per minute (at 14.4 Kbps). A 30-page document takes about 30 minutes. Online fax services are faster — typically 5–10 pages per minute — but the recipient's machine still prints at its own speed.

If the fax is urgent, send it in the morning when lines are less busy, or use an online service that automatically retries busy lines.

6. Request Confirmation

After sending, confirm receipt — especially for important documents like legal contracts or medical records. Ask the recipient to reply by email or call when they receive it. With mFax, you get an automatic delivery confirmation receipt showing the number of pages successfully transmitted.

Troubleshooting Common Multi-Page Fax Problems

Problem: Recipient only received some pages

• Cause: The line dropped mid-transmission, or pages fed incorrectly.
• Fix: Resend from the missing page number. Include a new cover sheet noting "Re-send: Pages 15–30 of 30."

Problem: Fax machine jammed on page 12

• Cause: Bent page, overfull tray, or dirty rollers.
• Fix: Clear the jam, remove the pages already sent, reload starting from the jammed page, and resend.

Problem: Recipient reports pages are blurry or unreadable

• Cause: Low-quality original scan, or file was over-compressed.
• Fix: Re-scan at 200–300 DPI and ensure the pages are clean and flat before scanning. See our guide on fax resolution tips.

Problem: File too large to upload

• Cause: High-resolution scans or large embedded images.
• Fix: Use mFax's Optimize PDF tool to compress, or re-scan at lower DPI (150–200 is sufficient for fax).

Send Your Multi-Page Fax Now

The fastest, most reliable way to fax multiple pages is to combine them into a single PDF and send with mFax — from your phone or computer, no fax machine required.

For personal faxing, download the mFax app — upload your PDF, enter the fax number, and send in under 2 minutes. Delivery confirmation included.

For business teams, mFax Business gives you virtual fax numbers, HIPAA compliance, and a shared dashboard — starting at about $9/mo (billed annually). There are no rigid fixed tiers: you build your own plan with a live calculator, choosing the exact number of seats and pages you need and paying only for what you use.

Free document tools — if you need to combine or compress PDFs before faxing:

• Merge PDF — combine multiple files into one
• Optimize PDF — reduce file size before sending
• Fax Cover Sheet Generator — create a professional cover page in seconds