Skip to content
Lizely

PNG To PDF

Turn PNG images into a lossless PDF right in your browser — pixel-perfect, no JPEG blur, nothing uploaded.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Click Browse PNG images and pick one or many PNG files, or drag them onto the page — they stay on your device and are never uploaded.
  2. 2.Choose your Page size (A4, US Letter, or Fit to image), Orientation (Auto, Portrait, or Landscape), and Margin (None, Small, or Normal).
  3. 3.Wait for the PDF to build, then click the download link to save your lossless multi-page PDF — one image per page, in selection order.

About PNG To PDF

PNG To PDF converts one PNG image, or a whole batch, into a single multi-page PDF entirely inside your browser. Each image becomes one page, in the exact order you select them, and the file never leaves your device — there is no upload, no queue, and no account. Everything runs on your own machine using standard web technology, so the tool works offline once the page has loaded and keeps your screenshots and documents private.

The reason to reach for PNG rather than a JPG converter is fidelity. PNG is a lossless format: it stores every pixel exactly as it was drawn, with no compression artifacts, no color bleeding, and no blurry halos around text and edges. When a screenshot, an app UI capture, a logo, a chart, a diagram, or a piece of line art is saved as JPG and then dropped into a PDF, the lossy JPEG step softens thin lines and smears sharp boundaries. This tool embeds each PNG losslessly, so a 1-pixel border stays a 1-pixel border and small text stays legible at full zoom. PNG also supports transparency; here any transparent area is composited onto a clean white background so it prints and reads correctly on the page instead of turning black.

You get three layout controls. Page size offers A4 (595 x 842 pt, i.e. 210 x 297 mm — the international standard) and US Letter (612 x 792 pt, i.e. 8.5 x 11 inches — the North American standard), plus a Fit to image option that makes each page exactly the size of its image, with no surrounding whitespace, which is ideal for edge-to-edge screenshots. Orientation can be left on Auto, which chooses portrait or landscape per image based on its shape, or forced to Portrait or Landscape for a uniform document. Margin can be set to None, Small (18 pt), or Normal (36 pt); the image is always scaled to fit inside the margins while preserving its aspect ratio and is centered on the page. Images are never blown up beyond their natural size, so a small logo stays sharp instead of pixelating.

Because 72 points equal one inch, image pixels map to points at 72 DPI, which is how the Fit to image mode reproduces the picture at 1:1. Under the hood each PNG is normalized through a canvas re-encode — still lossless — and then embedded into the PDF with the pdf-lib library, and the finished file is offered as an instant download.

Typical uses include collecting a series of screenshots into a report, packaging product mockups or UI states for review, turning scanned line drawings into a shareable document, or assembling logos and diagrams for a brand deck — all cases where crisp edges matter more than a slightly smaller file. If you specifically need smaller files and can accept some quality loss on photographs, a JPG to PDF converter is the better trade; for graphics, text, and screenshots, lossless PNG embedding is the safer choice. The tool handles a single image or dozens in one pass, lets you add more or clear the batch at any time, and rebuilds the PDF automatically whenever you change the pages or any option.

Frequently asked questions

Is PNG to PDF conversion lossless?
Yes. PNG is a lossless format and this tool embeds each image without JPEG compression, so screenshots, logos, line art, and diagrams keep pixel-perfect edges and crisp text with no blur or artifacts.
Are my images uploaded to a server?
No. The entire conversion runs in your browser using JavaScript and the pdf-lib library. Your files never leave your device, there is no account, and the tool works offline once the page has loaded.
What happens to transparent areas in my PNG?
Transparent pixels are placed on a clean white background before being drawn into the PDF, so transparency reads as white on the page instead of turning black, and prints correctly.

Related tools

PDF Tools guides

View all