pdfpix

Turn PNG images into a PDF

or drop them here
Choose at least one JPG or PNG image first.

Choose PNG images, put them in order, and build one checked PDF without an upload and without resampling a single image. Lossless pixels and transparency stay intact. Match each page to its image or use A4 or US Letter with no margin, a narrow margin or a standard margin. Page geometry and embedded pixel dimensions are verified before download.

How to turn PNG images into a PDF

  1. Choose PNG images

    Choose one or more .png files, or drop them on the page. Lossless pixels and transparency stay in this tab.

  2. Arrange the screenshots

    Screenshots are often named by time, so check the list before you build. Move a capture up or down, or remove the ones you do not want in the PDF.

  3. Size the pages

    Match image gives each screenshot a page of its own shape, at 96 pixels per inch, which suits a tall phone capture. A4 or US Letter puts every capture on paper you can print.

  4. Check the result and save it

    The PDF is reopened and each embedded PNG must still have its source width and height in pixels. A result that fails is not offered.

What goes into the PDF

Each PNG is embedded through the PDF writer's native PNG path. The image keeps its lossless source pixels, pixel dimensions and alpha channel. The verifier then checks every page size and the raw pixel width and height of every embedded PNG.

Where PNG to PDF fits

pdfpix is a free online PNG to PDF converter with no account needed and no daily cap. The page arrives over the network, but the convert step does not use it: each PNG is read and written into the PDF inside this browser tab, so the images never reach a server and nothing waits in a queue.

PNG is a lossless format, and it stays lossless here. The image goes into the PDF through the writer's native PNG path, which keeps the exact source pixels, the pixel dimensions and the alpha channel. Nothing is resampled, re-encoded or downscaled, so a screenshot of small type stays as readable in the PDF as it was on screen. Transparency is preserved rather than flattened onto white, which matters for a logo or an interface capture with rounded corners.

Lossless also means large. A set of PNG screenshots can weigh more than the application that produced them, because no lossy compression exists anywhere in the chain. If the finished file is too big to email, run it through Compress PDF, which reduces image data without turning selectable pages into pictures, or open Size breakdown first to see which pages carry the weight.

To merge these pages into a report you already have, use Merge PDF. To reorder or delete pages after the fact, use Organize pages. For PNG and JPG files in one pass, use Images to PDF, and Combine screenshots into a PDF covers ordering a long capture set.

Questions

Are my PNG files uploaded?
No. The PNG data goes from your disk into a PDF built in this tab. No server receives a screenshot.
Does PNG to PDF change image quality?
No. Each PNG is embedded without resampling. Its lossless source pixels and pixel dimensions are kept.
What happens to transparent areas?
The PNG alpha channel is kept in the PDF. A PDF viewer normally shows the unpainted page beneath it as white.
Why is the PDF so large?
PNG is lossless, so a full-screen capture can take several megabytes, and the PDF keeps every one of those bytes. Compress PDF reduces it afterwards, and Size breakdown shows which pages are the heaviest.
Does it make screenshot text selectable?
No. Text inside a PNG is made of pixels. This conversion does not run OCR.
Can I add JPG photos to the same PDF?
Not on this page, which takes PNG only. Images to PDF accepts JPG and PNG files in one job.

Related tools

Each runs in a browser tab like this one, reads its own output back before the download, and needs no account. The footer links every tool.

Where to go next