How to Combine Photos into a Single PDF on Your Phone | Turning Images into Submission-Ready Documents
You've been taking photos of receipts and documents to deal with later, and when it's finally time to submit them you're told "please combine these into one PDF" — and you're stuck. Even without a computer, you can convert multiple photos into a single PDF using only your phone.
When You'll Want to Convert Photos to PDF
Receipts for expense reports, page-by-page photos of a contract, whiteboard shots from a class or meeting — phones tend to accumulate scattered "images I'll deal with together later." Recipients often specify "PDF, not images" or "combine into one file," and there are situations where images alone simply won't do.
Ways to Convert Images to PDF
1. Transfer to a computer, then convert
You can create a PDF with built-in computer features or software, but transferring the photos to a computer takes effort, and it's not something you can do right away while out and about.
2. Print it out and scan it again
This is reliable, but it requires a printer and scanner, and it doesn't really suit a situation where all you have to begin with are photos.
3. Convert images to PDF with a phone app
Just pick photos saved on your phone and convert them to a PDF on the spot. Being able to combine multiple photos into a single PDF is a major advantage.
Steps to Convert Photos to PDF with PDF Toolkit
- Open PDF Toolkit and select "Create PDF from Images"
- Select the photos you want to combine, in order
- Check the order, then export it as a single PDF
You can use photos already saved in your camera roll as-is, so there's no need to re-scan the paper documents. If you still have the paper documents on hand, the "Scan to PDF" feature will photograph them and automatically correct skew and crop them into a PDF at the same time.
What You Can Do After Creating the PDF
A PDF created from multiple photos can be "merged" with other PDFs to combine everything into one file, or "compressed" if the file size is too large to attach to an email easily. Converting images to PDF is a great first step for organizing your PDFs.
If you want to later search or copy the text within a document you photographed, it's handy to run the OCR feature to recognize the scanned text. If the pages aren't oriented consistently, you can fix them with "Rotate Pages," or pull out just the pages you need with "Extract" to save them as a new PDF.
Summary
Converting photos to PDF can be done entirely with a phone app — no computer or scanner needed. If you regularly photograph receipts and documents as you go, we recommend combining them into a single PDF whenever it's time to submit them.
PDF Toolkit
Scan, merge, split, compress, and OCR text recognition — all in one app. A free app that turns camera shots into a PDF instantly.
📲 Download for free