Combine a PDF and photos into one file

Signing a contract on paper and photographing it is normal. Getting that photo back into the PDF is where people get stuck — most tools only handle PDFs, or only handle images.

Merge PDF — free and local

Joins several PDFs into one document, in whatever order you choose.

Use it now

✓ Nothing is uploaded ✓ No watermark ✓ No signup

Two steps, in the right order

First convert the photos to a PDF with the image-to-PDF tool: one photo per page, A4 or image size. Then merge that PDF with the original document using the merge tool, positioning the photo pages where they belong.

Doing it in the other order — trying to insert an image into a PDF — is not something browser-based tools do well. Converting the image to a page and then concatenating is both simpler and lossless for the PDF part.

Getting a phone photo to look like a scan

Shoot straight down, avoid shadows, and crop to the page edges before converting. Choose "Image size" if you want the page to match the photo exactly, or A4 with a normal margin if the result will be printed alongside text pages.

Resolution matters: a modern phone photo is roughly 300 DPI across an A4 page, which is exactly print quality. Do not downscale it before converting.

Check the page order before you send

The most common mistake is an out-of-order signature page. After merging, scroll the output once from top to bottom — it takes ten seconds and prevents the classic "please re-send, page 4 is in the wrong place" email.

Questions

Can I add a photo in the middle of a PDF?

Yes — split the PDF at the insertion point, convert the photo to its own single-page PDF, then merge the three pieces in order.

Will the photo stay high resolution?

JPG files are embedded as-is, so the photo keeps its original pixels. Only WebP is re-encoded once, to PNG.

Is anything uploaded?

No. Both steps run in your browser.

Merge 2 PDF files into one Merge 3 PDF files into one Merge 5 PDF files into one Merge 10 PDF files into one Compress PDF — Shrinks a PDF with four presets — lossless cleanup, light, balanced and extreme Compress to Size — Takes your upload limit in KB or MB and finds the best quality that still fits under it Split PDF — Splits one PDF into page ranges or a single file per page, delivered as a ZIP Organize Pages — Shows every page as a thumbnail so you can delete, reorder and rotate before saving

SlimPDF runs every tool in your browser. No file is ever uploaded, stored or shared.