JPG to PDF — photos become pages of a document

Why turn photos into a PDF

Paperwork gets photographed rather than scanned these days: an ID, a receipt, a page signed by hand, an expense slip. The photo takes a second — and that is where the convenience ends. Eight separate images still have to be sent somewhere, and whoever receives them sees a pile of files named IMG_2481 and has to guess the order.

A PDF settles both questions at once. The order is fixed inside the file instead of resting on filenames; it opens the same way on a phone, on a computer and in email; it prints like an ordinary sheet. Forms at banks and government sites usually ask for a document rather than a photo, and often accept exactly one file rather than eight.

How to convert JPG to PDF

The tool above works in three steps, with nothing in between:

• Upload your images — drag them into the field or pick them from the dialog. Take the whole batch at once or bring files one by one: new ones are added to what you already chose rather than replacing it;
• Put them in order. The list from top to bottom is the order of pages in the finished document. Up and Down move a row, Remove drops what you do not need;
• Take the finished document. Building takes a second, and then the PDF is ready to download.

One image is enough: photograph a receipt, send it as a document. There is no two-file minimum here, unlike merging finished PDFs, where a single document genuinely has nothing to be merged with.

How the page is put together

Every image becomes its own A4 page — an ordinary sheet that prints on any printer. The photo sets the orientation: an upright one gives an upright page, a wide one gives a landscape page.

The sheet turns to suit the photo, not the other way round. Otherwise a landscape shot would fill half a page and lose half its size.

Within the sheet the image is fitted whole and centred, and its proportions are left alone: nothing is stretched, squeezed along one side or cropped at the edges. A strongly elongated photo leaves margins at the sides — which is more honest than cropping the frame on your behalf.

What happens to quality

This deserves saying plainly, because rival pages tend to promise «no quality loss» at exactly this point. The image is re-encoded: inside a PDF it lives as a JPEG, and without that step the document would not open identically in a browser, in a phone reader and in whatever prints it.

In practice the difference is small. We encode at high quality and do not reduce pixel dimensions at all — the image is neither scaled down nor capped by resolution, so all of its detail goes into the document. On a photo, a scan or a screenshot the result is hard to tell from the original. Re-encoding shows up most on images with hard edges: diagrams, interfaces, large lettering.

What we fix along the way

Two things that usually spoil a phone photo in other tools are dealt with up front:

Rotation. A phone almost always shoots in landscape and records the intended rotation as a separate flag. Apps that ignore that flag show the photo on its side — which is where sideways pages in documents come from. We rotate the image for real before it becomes a page, so nothing has to read the flag afterwards.

Colour. iPhones shoot in the wide Display P3 space, while documents and browsers read colour as sRGB. Carrying the numbers across untouched makes the photo look faded — exactly the washing-out people complain about after other converters. We convert through the profile instead.

Which images work

JPG, PNG, HEIC, WebP, TIFF and GIF. Two formats are worth a word of their own, because they are where people usually get stuck:

• HEIC is what an iPhone shoots by default. You do not need to convert it to JPG first — the page takes the file as it is. If such a photo «would not open» in other services, the format was the reason;
• Animated GIF and WebP contribute their first frame. A page of a document does not move, and picking a frame from the middle on your behalf would be odd.

A finished PDF cannot be brought to this page — it is refused outright rather than quietly contributing its first page and losing the rest. To join a document with images, build the images here and then combine both files on the merge PDF page.

Limits

There are two, and both are about reasonableness rather than computing power:

• Up to twenty images at a time. A bigger batch usually means the document is better built in parts — and that can be done right here: the finished PDF goes to the merge page and joins the rest;
• Up to 64 MB for the batch. The limit is shared, not per file. Phone photos stay well under it: twenty shots usually weigh half that.

What happens to your files

Uploaded images are never stored: they live in memory for exactly as long as the build takes. The result has to be written to disk — it has to be handed to you — and it is removed by age after about half an hour, whether you picked it up or changed your mind.

The link to the finished document is signed and lives as long as the file itself: it cannot be guessed, and once it expires it stops working. We keep no upload history and ask for no sign-up — there are no accounts on this site at all.

The whole thing is free: no paid tiers, no subscription, no limits that lift for a fee. No watermarks either — nothing is stamped over your photo and no site address appears in the corner of the page.

The other direction

If you need the opposite — images out of a finished document — that is the neighbouring page: PDF to JPG renders every page as its own file and hands them over as an archive. And merge PDF is what you want when the documents are already made and simply need to become one.