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Celveri

Convert JPG to PDF

Photographs of documents are almost always JPG, and almost every portal that accepts them wants a single PDF. This opens set up for exactly that.

Combine images into a PDF

Drag images here, or choose them

JPEG, PNG, WebP, GIF, BMP or AVIF — up to 30 images, each up to 25.00 MB.

Your images are turned into a PDF in this browser tab. Nothing is uploaded.

Why this conversion exists

Almost nobody owns a scanner any more, and almost every institution still wants a PDF. So the universal workflow has become: photograph the document with a phone, which produces JPGs, and then find some way to turn a pile of JPGs into one PDF that an upload form will accept.

The forms that demand it are relentlessly ordinary:

  • university and visa applications wanting certificates;
  • banks and lenders wanting statements and payslips;
  • employers wanting identity documents and qualifications;
  • government portals wanting proof of address, often with a hard size cap;
  • insurance claims wanting photographs of damage.

What that list has in common

Every single item is a document you would not hand to a stranger. A passport photograph, a bank statement and a payslip together are enough to impersonate someone. Yet the usual way to make this PDF is to upload all of them to a free website, which is to say: to give a company you have never heard of a complete identity file, on trust, in exchange for a conversion your own computer could have done.

Celveri does it in the tab. Your photos are read from your disk by your browser, drawn, and written into a PDF that is handed straight back to you. Nothing is transmitted — which you can confirm for yourself by opening the network panel in your browser’s developer tools and watching it stay empty while the PDF is built.

Getting a good result from phone photos

  • Fill the frame with the page and shoot straight down. Celveri scales each photo to fit and does not crop, so whatever surrounding desk you include stays in the PDF.
  • Keep A4 as the page size if the PDF is going to a form or a printer. Use Match each image only when it will just be viewed on screen.
  • Resize before converting if the file has to be small. It costs less quality than pushing the JPEG slider very low.
  • Check the order before you build, not after.

If PNG would suit you better

Screenshots, exported charts and anything with crisp text or flat colour belong in a PNG to PDF document instead — JPEG’s compression leaves visible smudging around sharp edges. For photographs, JPG is the right choice and this page is already set up for it.

Common questions

The portal says my PDF is too big. What do I change first?
The JPEG quality slider, every time. Drop it to around 70% and look at the result — on a photograph of a printed page the difference is usually invisible, and the file often halves. If you are still over, the photos themselves are the problem: see the next answer.
My phone photos are enormous. Should I shrink them first?
Usually yes, and it helps more than anything else. A phone camera produces 12 megapixels or more. A sheet of A4 photographed at a comfortably readable quality needs about 2. Run them through the Image Resizer at something like 1600 pixels on the long edge first, and a PDF that was 9 MB becomes about 1 MB with no visible loss at normal reading size.
Will my photos come out sideways?
No. This is the classic failure of JPG-to-PDF converters and it is worth knowing why it happens. Your phone does not rotate the pixels when you turn it — it stores the image the same way every time and writes an EXIF orientation tag describing how to show it. Converters that copy the JPG straight into the PDF never read that tag, so the page arrives on its side. Celveri decodes each photo with the tag applied, so the rotation is already in the pixels.
Can I put several photos of the same document in order?
Yes, and that is the main thing this is for. Add all the pages, then use the arrows to get them into the right order — the number next to each photo is the page it will become. Phones often hand over files in an order that has nothing to do with the order you took them in, so it is worth checking before you build.
Does it add a watermark or a limit on free use?
No to both. There is no watermark, no page cap beyond the 30 images a browser tab can hold safely, no account and no paid tier. The conversion happens on your own machine, so there is nothing for us to meter.
Is a JPG inside a PDF still a JPG?
Yes. PDF stores JPEG data natively, so what ends up inside the document is a JPEG image, not a converted copy of one. That is why the quality slider has such a direct effect on the final file size.