Can I merge a PDF with images (JPG, PNG, iPhone photos)?

Yes. Drop photos and scans in with the PDFs; each image becomes a page at its own size, the right way up even when the phone stored it sideways, and takes its place in the order you set.

Are my files uploaded to a server?

No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.

Is there a limit on how many PDFs I can merge?

There is no fixed cap. The practical limit is your device’s memory — very large documents on an older phone may run out of room, in which case merge in batches.

Does merging reduce quality?

No. PDF pages are copied as they are, and JPEG and PNG pictures go in unchanged. Only other picture formats, such as HEIC or WebP, are first saved as a high-quality JPEG.

Merge PDF files

Runs on your device · Your file never leaves your device.

Add the PDFs you want to join, drag them into the order you need, and download a single combined document. PDF pages are copied across intact, with no re-rendering; JPEG and PNG pictures go in unchanged, while HEIC and WebP photos are saved as high-quality JPEG first.

Merging happens locally, which matters when you are combining things like signed contracts, bank statements or patient records: the documents are never transmitted anywhere.

The merged file keeps each source document’s original page sizes, so mixing an A4 report with a Letter-size scan produces a document with both, rather than stretching either one.

How to merge PDF files

Add the PDFs you want to combine.
Drag them into the order you want, or use the up and down arrows beside each file on a phone.
Press Merge PDF and download the single combined document.

Supported formats and limits

Input: Two or more PDFs
Output: One combined PDF
Quality: Lossless — pages are copied; JPEG and PNG pictures go in unchanged
Where it runs: In your browser; nothing uploaded

Not for: Very large batches on a low-memory phone — merge in smaller groups if it runs out of room.

What the merged file keeps

Every page is copied into the new file as it is, with its text, pictures and page size, in the order of the list. Text stays selectable, and comments and web links that sit on a page travel with it. What belongs to a document as a whole is not copied: bookmarks (the outline shown in a reader's side panel), the document title and other details, and the form that ties fillable fields together. Fill in forms before merging. Links that jump to another page of the same file still work in the merged file.

A PDF that is protected only against editing or printing is merged without asking. One that needs a password to open asks for it once, and the password is remembered for that file while the tab stays open. Either way, the merged file carries no password or restrictions of its own, so keep that in mind before sending it on.

Adding photos and scans

Images can go into the same list as the PDFs. A JPEG or PNG becomes a page unchanged, a PNG keeping its transparency. A phone photo stored sideways with a note saying which way is up gets its page turned, so it shows upright while the photo itself stays untouched. HEIC, WebP, GIF, BMP and AVIF pictures are first saved as a high-quality JPEG, so their transparent areas turn white. Each picture becomes a page of exactly its own shape, with one point of page size for every pixel, so a phone photo makes a page much larger than an A4 page beside it. On screen, the reader simply shows that page zoomed out.

If the photos should sit on A4 or Letter pages with a margin, like the rest of the document, make them into a PDF first with /jpg-to-pdf or /image-to-pdf, then merge that PDF with the others.

Putting the files in order

The list shows how many pages and kilobytes each file has, and the total number of pages. Drag a row by its handle to move it, or tap the up and down arrows beside it, which also work on a phone; the pages follow the list from top to bottom. A file that cannot be read is named in a message and left out, so check the total before you merge.

Merging needs at least two files. The result is called merged.pdf, and Preview first page shows page one of the finished file before you download it. To change the order of pages inside a single PDF, use /reorder-pdf-pages.

Frequently asked questions

Can I merge a PDF with images (JPG, PNG, iPhone photos)?: Yes. Drop photos and scans in with the PDFs; each image becomes a page at its own size, the right way up even when the phone stored it sideways, and takes its place in the order you set.
Are my files uploaded to a server?: No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.
Is there a limit on how many PDFs I can merge?: There is no fixed cap. The practical limit is your device’s memory — very large documents on an older phone may run out of room, in which case merge in batches.
Does merging reduce quality?: No. PDF pages are copied as they are, and JPEG and PNG pictures go in unchanged. Only other picture formats, such as HEIC or WebP, are first saved as a high-quality JPEG.