How to Turn a Phone Photo of a Document Into a PDF

You need to send a signed form, a receipt for an expense claim or a letter "as a PDF" – and the only device to hand is your phone. A photo of the page, converted to PDF, is often all you need. The quality of the result depends far more on the photo than on the conversion, so most of this guide is about taking a good picture.

Step 1: Take a clear photo

A few small things make a big difference:

Use daylight or even light. Stand near a window or under a ceiling light. Avoid the camera flash, which creates a bright glare spot.
Avoid shadows. Your phone and hand easily cast a shadow over the page. Hold the phone slightly to the side of the light source.
Shoot straight from above. Hold the phone parallel to the page so the edges are straight, not a trapezium.
Use a contrasting background. A white page on a dark table is easier to crop neatly.
Fill the frame. Get close enough that the page fills most of the picture, with a small border.
Tap to focus on the text, then hold still. Check the photo before you put the phone away – zoom in to see if small print is readable.

Step 2: Crop and straighten

Open the photo in your phone's built-in photo editor and:

Crop to the edges of the page.
Straighten it if it's slightly tilted.
Optionally increase contrast a little, so the text stands out from the paper.

You don't need special apps – the editors built into iOS and Android can do all three.

Step 3: Convert the photo to PDF

Open the JPG to PDF converter in your phone's browser.
Tap Choose file and select the photo from your gallery.
Choose the page settings:
- Page size: A4 (or US Letter in the US and Canada), so the PDF prints like a normal sheet of paper.
- Orientation: Automatic, which follows the shape of the photo.
- Margin: Small, so printers don't cut off the edges.
Tap convert and download the PDF.

Phones often save photos sideways together with a note on how to rotate them. The converter reads that note and puts the page the right way up.

Step 4: Check before sending

Open the PDF and check that:

every line, including small print and signatures, is readable,
nothing important is cut off at the edges, and
the file isn't too large for the form or email you're sending it to.

If the file is too large, reduce the photo with the Image Resizer – for example to 2000 pixels on the long side – and convert it again. That is still sharp enough for an A4 page.

Multi-page documents

The converter creates a one-page PDF from one photo. For a document with several pages, convert each photo separately. If the recipient needs a single file, check whether they accept several PDFs, or use a scanning app or PDF editor that can combine pages.

Limitations to be aware of

The text is not searchable or editable. The PDF contains a picture of the page. Turning it into text requires OCR, which this tool doesn't offer.
A photo is not a certified copy. For official documents, check whether the recipient accepts a photographed copy.

Frequently asked questions

Does this work on iPhone and Android?

Yes. The converter runs in the browser, so it works in Safari, Chrome and other mobile browsers – no app needed.

Should I use A4 or "Same as image"?

Use A4 or US Letter if the PDF might be printed or uploaded to a form. "Same as image" is better for purely digital use, because it adds no white border.

My photo is a HEIC file. Can I convert it?

The converter accepts JPG, PNG and WEBP. Most phones can save or share photos as JPG – on an iPhone, choose Settings › Camera › Formats › Most Compatible, or share the photo by email, which usually converts it to JPG.

Summary

Good light, a straight angle and a quick crop are the keys to a readable PDF from a phone photo. Convert the photo with A4 or Letter page size and a small margin, check that the small print is readable, and resize the photo first if the file needs to be smaller.