Merge Several Photos Into One Ordered PDF

"Please upload your documents as a single PDF." It's a common instruction and a genuinely annoying one when what you have is four photos on your phone.

Merge Images to PDF does exactly this: add your images, put them in the right order, and download one PDF containing all of them as separate pages.

When you need this rather than a plain conversion

If you have one image, Image to PDF is all you need. Merging matters when several images are logically one document:

• Both sides of an ID card or licence — almost always requested as one file, not two.
• A multi-page contract or form photographed page by page.
• Expense receipts for a single claim.
• Certificates and supporting documents for an application that allows one upload slot.

Order is the part people get wrong

The single most common mistake is page order. Phone galleries sort by capture time, which is often not document order — especially if you re-shot page 3 because the first attempt was blurry, putting your retake at the end of the sequence.

Drag the thumbnails into the right order before you download, then check the finished PDF page by page before submitting. A contract with pages out of order can get an application bounced just as easily as a missing one, and it's a much more embarrassing reason.

Get each page right before merging

Fixing a page after it's inside a PDF is far more work than fixing the image first. Worth doing up front:

• Rotate anything sideways. Rotate Image handles it. Mixed orientations inside one PDF look careless and are hard to read.
• Crop away everything that isn't the document. Crop Image tightens the framing and cuts file size at the same time.
• Shoot square-on in even light. No tool fixes a shadow falling across the page as well as moving the lamp does.

Keeping the file size down

This is where merged PDFs bite. Each page carries a full phone photo, so a handful of pages straight off a camera can easily add up to something past what many portals accept. Compress the images before merging rather than trying to shrink the finished PDF.

Reduce the pixel dimensions rather than just the file size — Resize Image to around 1500–2000px on the long edge keeps a document legible while cutting real weight. That's the part that sticks: the merge re-encodes each page at its own fixed quality, so a heavily compressed source doesn't stay heavily compressed once it's a PDF page, but a smaller image stays smaller. Compress Image to 200KB also downscales when it needs to, which works for the same reason. Our guide on hitting an exact size limit goes deeper.

Nothing leaves your device

The merge happens in your browser. Given this tool exists mainly for IDs, contracts, and financial paperwork, that's worth being explicit about: your documents are assembled locally and never uploaded to a server to be processed.

FAQ

Can I reorder pages after adding them?
Yes — drag the thumbnails into the order you want before downloading. Check the finished PDF before submitting it.

Is there a limit on how many images I can merge?
Practically, your device's memory is the limit, and very large batches of full-resolution photos will feel slow. Compressing first helps as much with speed as it does with file size.

Will the text be searchable?
No. This produces a PDF of images — there's no OCR step, so the text remains a picture of text. That satisfies most upload requirements but isn't a searchable document.