Frequently asked questions

Collage PDF is a free browser tool for arranging photos and text on A4 pages and exporting them as a PDF.

Is it free?

Yes. No account, no sign-up, no watermark on the exported PDF, and no limit on pages or exports.

Do I need to install anything?

No. It runs entirely in your web browser — nothing to download, nothing to register for.

Which image formats are supported?

Any format your browser can display: JPEG, PNG, WebP and GIF among them. HEIC and HEIF from iPhones work too, as described below.

Can I use photos from my iPhone?

Yes. iPhones save photos as HEIC by default, which many tools reject. Upload them directly — they are converted to JPEG in your browser before being placed on the page, so there is no separate conversion step.

What page size does it export?

A4 (210 × 297 mm). The editing canvas matches that ratio exactly, so what you arrange on screen is what lands in the PDF.

How many images and pages can I add?

There is no fixed limit on either. In practice, a page crowded with high-resolution photos can hit a size ceiling during export — see below.

Why did my PDF fail to export?

Almost always size. There is a ceiling on how much image data can be sent for rendering in one request, so a collage with many large photos may not complete. Split it across two exports, or use fewer high-resolution images per page. Images are compressed before upload, so this generally only appears with a lot of large photos at once.

Does it work on a phone or tablet?

It loads on mobile browsers, but the editor is built around dragging and resizing on a full A4 canvas. A laptop or desktop is considerably easier to work with.

Can I edit text after adding it?

Yes. Click any text box to change its content, size or colour, or drag it somewhere else, for as long as the page is open.

Is my work saved if I close the tab?

No. There are no accounts and no saved projects — your layout exists only while the page is open. Export your PDF before you close the tab.

Can I print the result?

Yes, that is what the A4 sizing is for. Bear in mind that most home printers cannot print edge to edge, so keep anything important about a centimetre clear of the page edge.

Open the editor →