Turn Photos Into a PDF to Fax

Turn phone photos into one PDF you can fax — in your browser, with JPEGs passed through untouched.

This tool builds your PDF inside your own browser, so it needs JavaScript switched on.

  • Nothing is uploaded — not stored, not deleted later
  • JPEGs pass through untouched, not recompressed
  • Free, no sign-up, no watermark

What it changes

Fax services take PDFs and your phone takes photos, which is the whole reason people end up emailing a picture to themselves and printing it. Closing that gap is only half the job, though, because a photo is not page-shaped. Your camera produces something roughly 3:4, a fax expects US Letter or A4, and a converter that simply stretches one to fit the other gives you a distorted document with the edges running off the paper. Fax machines then trim the outer few millimetres of whatever they receive, so anything that reached the edge is gone. Each image here is placed on a real page at its own proportions, centred, with an optional half-inch of clearance so nothing sits in the trim zone.

The second thing is quality, and it is where most converters quietly lose. A JPEG is already compressed; decoding it and compressing it again throws away detail a second time, which shows up first in exactly the places that matter — the thin strokes of handwriting, the edges of small print. A PDF can carry original JPEG data unchanged, so when the settings allow it that is what happens here: the bytes from your camera go into the file as they are. No second compression, and a smaller PDF than a re-encoding tool produces.

Questions people ask

Which image formats work?
JPG, PNG and WebP. Not HEIC, which is what an iPhone saves by default — no browser decodes it reliably, so it gets skipped with a note rather than failing silently. In the iOS camera settings, Formats, choose Most Compatible and new photos will be JPEG. For photos you already have, share them to Mail or Files and they convert on the way out.
Will the photos lose quality?
Not if they are JPEGs and you choose to fit the page to each image — then the original data goes into the PDF untouched. Any other combination means the image has to be redrawn onto a page of a different shape, which involves one re-encode at high quality. Either way the difference is invisible next to what faxing itself does to an image, which is the far bigger transformation.
Can I put several photos into one PDF?
Yes, one image per page, in whatever order you set. Drag them by the handle, use the arrows, or hold Alt and press up or down. Order matters more than people expect on a fax, because the recipient gets a stack of paper with no way to tell that page four was meant to come second.
How do I photograph a document so it faxes well?
Flat surface, straight down from above, and get the whole page in frame with a little room around it. The thing that matters most is even light: a shadow across one corner is what makes a faxed photo of a form come out with that corner solid black. Daylight from a window beside you, not behind you, and avoid your own shadow. Do not use flash on glossy paper.
Do I still need to optimize it after this?
For a photograph of a document, yes, and it makes a large difference. This gives you a PDF; a fax is black and white at about 200 dpi, and a colour photo has to be converted to that whether you do it or the receiving machine does. Doing it yourself is the only way to see the result first. Run the PDF through the fax optimizer and check the signatures survived.
Are my photos uploaded anywhere?
No. Everything happens on your own device, so nothing is transmitted to us or anyone else and there is no server copy to delete afterwards. You can check it yourself: load the page, disconnect from the internet, and the tool still works. That matters more than usual here, because a photo of a document is often a photo of an ID, a bank letter or a medical form.

Then send it

Take the PDF through the fax optimizer next if it is a photo of a document, then send it with anything you like. From a phone, Municorn Fax handles PDFs directly on iPhone and Android and includes one free test fax, which is worth using to confirm a page arrives the way you expect; after that it is $9.99 a week — see plans. If you would rather not photograph the document at all, our guide to scanning and faxing covers the alternatives.

More on faxing documents

Optimize a PDF for fax

The black-and-white pass that decides whether it arrives legible.

Scan and fax a document

Getting a clean scan, with or without a scanner.

Fax from an iPhone

Every route from a phone to a fax number, compared.

Merge PDFs to fax as one

Combine the photo PDF with a form or a cover sheet.

About Tamsin Gable

Head of PR at Municorn and a Forbes Communications Council member since 2025. Tamsin covers fax technology, secure document workflows, and how regulated industries handle sensitive communications.