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How to combine photos or scans into one PDF

Last updated: 4 November 2026

A landlord wants your payslips as one PDF, an insurance form asks for receipts, or a university needs a signed form and a copy of your ID together. You have the pages as photos on your phone. Sending ten separate images is messy, and many upload forms only accept a single PDF. Combining the photos into one document solves both problems.

Step 1: take good photos of the pages

A clear PDF starts with clear images. A few habits make a big difference:

  • Use even light. Daylight near a window works best. Avoid the flash, which leaves a bright spot, and your own shadow over the page.
  • Hold the phone directly above the page, parallel to it, so the text is not skewed.
  • Fill the frame with the document and put it on a plain, contrasting surface.
  • Use a scan mode if you have one. The iPhone Notes app and Files app, and Google Drive on Android, can scan documents: they find the edges, straighten the page and save a clean image.

Step 2: combine the images into a PDF

With the JPG to PDF converter each image becomes one page:

  1. Open the converter and add your photos with Choose files, or drag them in. JPG, PNG and WebP images all work.
  2. Put the pages in order with the arrows next to each image, and remove any you do not need with ×.
  3. Pick a Page size and margin, then click Create PDF and download the file.

The PDF is built by your browser on your own device. That matters for exactly the documents people usually combine: IDs, bank statements, contracts and medical letters never leave your phone or computer. For screenshots and graphics saved as PNG, PNG to PDF does the same job.

Which page size to choose

  • Same as image makes each page exactly the size of its photo. Good for screenshots and anything that will only be read on screen.
  • A4 (most of the world) or Letter (US and Canada) is the better choice for anything that might be printed or submitted as an official document. Each image is scaled to fit and centred, and landscape photos get a sideways page.

Keep the PDF small enough to send

JPG and PNG images are placed into the PDF without re-compression, so the PDF ends up about as large as your photos combined. Ten phone photos at 3–4 MB each make a 30–40 MB PDF, which is too big for many email services and forms. Two ways to keep it smaller:

Adding pages that are already PDFs

Sometimes part of the bundle is already a PDF, such as a contract you received by email. Create a PDF from your photos first, then put both files together with Merge PDF. Pages are copied as they are, so text stays sharp and nothing is re-compressed.

Checklist before you send it

  • Open the PDF and scroll through every page: right order, nothing cut off, all text readable.
  • Check the file size against the limit of the form or email service.
  • Give the file a clear name, such as payslips-2026-jan-mar.pdf, instead of document.pdf.

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