How to Turn Photos into a PDF on Your Phone

Receipts for an expense claim, a signed form, pages of handwritten notes, a child’s school certificate: more and more paperwork starts life as a photo on your phone. But most offices, schools and websites want a PDF, ideally a single tidy file rather than a dozen separate pictures.

Here’s how to turn photos into a PDF on an iPhone or an Android phone, using built-in apps or a free browser tool, plus a few tips that make the result look properly scanned rather than snapped on a kitchen table.

First, take better photos

A little care when taking the picture makes a bigger difference than any app:

• Use even light. Daylight near a window is ideal. Avoid the flash, which creates glare, and watch out for your own shadow falling across the page.
• Lay the page flat on a darker, plain surface so the edges stand out.
• Hold the phone parallel to the page. Tilting it turns rectangles into trapezoids.
• Fill the frame with the document, leaving a small border all round.
• Check it’s sharp before you move on. Zoom in on the photo to make sure small text is readable.

On an iPhone

Option 1: scan with the Notes app

The Notes app has a built-in document scanner that finds the edges of the page, straightens it and saves a clean, PDF-ready scan.

1. Open Notes and create a new note.
2. Tap the camera button and choose Scan Documents.
3. Hold the phone over each page. It captures automatically when the page is in focus. Tap Save when you’re done.
4. Open the scan, tap the Share button and save or send it as a PDF.

This is the best choice when you’re scanning paper right now.

Option 2: combine existing photos with the Files app

If the photos are already taken, save them to the Files app first (select them in Photos, tap Share, then Save to Files). Then, in Files, tap ⋯ → Select, choose the images, tap ⋯ again and pick Create PDF. The images are combined in the order they’re listed, so rename them with numbers if the order matters.

Option 3: use the print trick

In Photos, select your pictures, tap Share → Print, then use the Share button in the print options to Save to Files as a PDF. The exact steps vary a little between iOS versions.

On an Android phone

Option 1: scan with Google Drive

1. Open the Google Drive app and tap the + button.
2. Choose Scan and photograph each page. Drive crops and straightens them automatically.
3. Tap Save. The pages are saved to Drive as a single PDF.

Some phone makers include their own scanning feature in the camera or files app too, which works in a similar way.

Option 2: print a photo to PDF

For a single photo, open it, choose Print from the menu, and select Save as PDF as the printer. For several photos in one file, the browser method below is usually easier.

On any phone: in your browser

When you already have the photos and want full control over the order and page size, PDFCocoon’s Images to PDF tool works in Safari, Chrome or any other mobile browser, and your pictures never leave your phone.

1. Open Images to PDF and tap the box to choose your photos. Select several at once.
2. Put them in order with the arrow buttons under each image. Each photo becomes one page.
3. Choose a page size: A4 or US Letter for documents you might print or submit, or Same as image for viewing on screen.
4. Tap Convert and the PDF downloads to your phone.

Phones often store photos sideways with a note saying which way is up. PDFCocoon reads that note, so your pages come out the right way round. If one page is still sideways (for example a photo taken looking straight down), fix it with Rotate PDF.

iPhones save photos as HEIC by default. These convert fine in Safari; in other browsers, change Settings → Camera → Formats to Most Compatible to save new photos as JPG.

Make the PDF easy to read

• Order matters: put a form’s first page first and receipts in date order, the way the reader expects them.
• Choose a standard page size if the PDF will be printed or uploaded to an official system, so pages don’t come out enormous or tiny.
• Add a small margin so nothing near the edge gets clipped when printed.
• Name the file clearly, like “expenses-march-2026.pdf”, not “images.pdf”.

Before you send it

Photos are heavy, so a PDF made from many high-resolution pictures can exceed email or upload limits. If yours is too large, split it into parts, or remove any pages you don’t need with Delete PDF Pages. And if you have more photos to add later, combine the new PDF with the old one using Merge PDF.