How to Convert JPG Photos to One PDF, Even on iPhone
A college application wants your mark sheets as a single PDF under 2 MB. You have six phone photos of them in your gallery. JPG to PDF turns those photos into one PDF, in the order you choose, on the paper size you choose, and without uploading anything.
Steps
- Tap Images and select your photos. On an iPhone you can pick directly from Photos or Files.
- Put them in order with the ↑ and ↓ buttons. Remove a stray with ✕.
- Choose a page size: A4 or US Letter for documents you'll print or submit, or Same as image to keep each photo's shape.
- Adjust the quality slider if you need a smaller file.
- Tap Make PDF and download.
Each image becomes one page. With automatic orientation on, landscape photos get landscape pages instead of being squeezed sideways.
Hitting a size limit
Upload portals love limits like "under 1 MB" or "under 2 MB". Two levers help:
- The quality slider. Somewhere in the 70–85% range usually keeps text readable while cutting the size a lot.
- Fewer pages. If the form only needs the front of a certificate, leave the back out.
Very large photos are automatically scaled so the long side is at most 4000 pixels, which already trims most modern phone photos. If you're still over, run the finished file through Compress PDF.
Taking better photos of documents
The quality of the PDF depends mostly on the photo:
- Lay the page flat and shoot from directly above, not at an angle.
- Use daylight from a window; avoid the phone's own shadow.
- Fill the frame with the page.
- Wipe the camera lens. It sounds silly, but a smudged lens is the main cause of hazy scans.
If your photos are crooked or show the table around the page, Scan to PDF is the better choice: it finds the page edges and straightens them.
Formats and options
PNG, JPG and WebP images work in every current browser. HEIC photos (the iPhone default) open in Safari. There's also an Output option, One PDF per image, which turns each photo into its own PDF with the same settings, handy when a portal wants each document uploaded separately. You can download them individually or all in a zip.
How the PDF is made
Each image is drawn onto a canvas, re-encoded as JPEG and written into a standard PDF. That re-encoding is why the quality slider works, and it's also why a PNG screenshot ends up as JPEG inside the PDF.
A4, Letter or Same as image?
If the PDF will be printed, or uploaded to an official portal, pick the paper size your country uses: A4 in India, the UK and most of the world, US Letter in the United States and Canada. Your photos get fitted onto proper pages and print without odd scaling. Same as image suits screenshots, receipts and long photos where a fixed page would add big white margins. When in doubt for documents, A4 is the safe default outside North America.
Privacy
The tool page says no image is uploaded and the conversion happens in the browser tab, so it's safe for ID cards, mark sheets and bank documents. The page shows Google ads, as the rest of the site does.
FAQ
How do I do this on an iPhone? Open the page in Safari, tap Images, choose your photos, tap Make PDF, then save to Files from the Share sheet.
Can I put several images in one PDF? Yes, that's the default. Select several and reorder them.
How do I make the PDF smaller? Lower the quality slider or drop unnecessary pages.
Can I make one PDF per photo? Yes, set Output to One PDF per image.
Next time a form wants "a single PDF", reach for JPG to PDF.
— Alok Kumar Singh