Convert PNG to PDF

PNG is what screenshots and exported diagrams come out as, and re-compressing them smudges the text. This opens with lossless storage already chosen.

Drag images here, or choose them

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

Choose images

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

When PNG is the right source

PNG is what your computer gives you when you capture a screen, export a chart, save a diagram or download a logo. It is lossless, it holds transparency, and it is built for images with large areas of flat colour and hard edges — which is exactly what all of those are.

That makes the PNG-to-PDF case quite different from turning photographs into a document. The usual reasons to be here:

assembling screenshots into a walkthrough, a bug report or a piece of evidence;
turning exported charts into something to circulate;
collecting design mock-ups or diagrams into one file for review;
making a printable sheet out of images that have to stay crisp.

The one decision that matters

Whether to keep the images as PNG inside the document, or let them be stored as JPEG. This page starts with PNG selected, because that is what preserves a screenshot exactly. The trade is file size, and it is not a small one.

Keep PNG for screenshots, user interfaces, text, diagrams, charts, line art and anything with transparency. JPEG leaves visible smudging around sharp edges, and on small text it is immediately obvious.
Switch to JPEG if your PNGs are really photographs — some phones and screenshot tools save photos as PNG — or if the file has to fit under an upload limit and the content can tolerate it.

Why this runs in your browser

Screenshots are not the neutral files they look like. A capture of a dashboard, an internal tool, a support ticket or an email thread carries customer names, account numbers, internal URLs and whatever else happened to be on screen. Uploading those to a free converter means sending your employer’s data, or your client’s, to a third party nobody has reviewed.

Celveri assembles the PDF inside this tab. There is no upload endpoint, no server-side component and no network request carrying your images — you can watch the network panel in your browser’s developer tools stay empty while it works.

If your images are photographs

Use JPG to PDF instead. It opens with JPEG storage selected and the guidance there is about phone photos, rotation and upload limits rather than keeping text crisp.

Common questions

Why is my PDF so much bigger than the PNGs that went in?: It generally is not — but a PDF of PNGs is far bigger than the same pages as JPEG, and that surprises people. PNG stores every pixel exactly rather than approximating, which is the whole point of it. For screenshots of text and flat colour the cost is modest. For photographs it is enormous, often five to ten times, because PNG has no good way to compress continuous tone. If your PNGs are actually photographs, switch the storage setting to JPEG.
What happens to transparency?: If you keep the storage set to PNG, the alpha channel is preserved in the document. Be aware that this is rarely what you want in a PDF: most readers show the page on white, but a transparent logo placed over a dark background in some other application will show through. If you switch to JPEG, transparent areas are filled with white, because JPEG cannot store an alpha channel at all.
Will the text in my screenshot stay sharp?: Yes, as long as two things hold. Keep the storage on PNG, which does not touch the pixels. And make sure the screenshot has at least as many pixels as the page it is being placed on, or it will be enlarged to fit and go soft — the result tells you which pages that happened to. Choosing Match each image as the page size avoids the problem entirely.
Can I select the text afterwards?: No. A screenshot of text is a picture of text, and putting it in a PDF does not change that — the words are pixels and cannot be selected, searched or copied. Nothing that works from an image can give you real text back without optical character recognition, which this tool does not do and does not pretend to.
Which page size suits screenshots?: Match each image, usually. A screenshot has an arbitrary shape that has nothing to do with paper, and forcing a wide 16:9 capture onto a portrait A4 page leaves thick empty bands above and below it. Matching gives you a page the exact shape of the capture. Choose A4 or Letter only when the document is genuinely going to be printed.
Are the images uploaded?: No. The document is assembled in this browser tab and the download comes from the copy made here. Celveri has no upload endpoint and no database.