Images to PDF — Guide

Combine images into one PDF, each on its own page at its own size — JPEG is carried in without re-compression, and everything runs in your browser.

What it is and when to use it

Combine photos, scans and screenshots into one PDF without a server seeing them. The design choice that matters is what happens to quality: a JPEG is carried into the document unchanged, so a 3MB scan does not come out as a 3MB file with fresh compression artefacts laid on top. A PNG is not lossy-recompressed either — it is decoded and stored in the PDF's own lossless image encoding, which costs nothing in quality but can change how many bytes it ends up as. Page geometry follows the image — a page is the image's pixel size, one point per pixel — which is what you want for scans and screenshots, and an optional margin adds white space when the document is going to be printed. The whole thing is a single in-browser operation, so a folder of receipts or a batch of whiteboard photos never leaves the machine; the resulting PDF is assembled locally and handed to you as a download.

Put one or more images into a single PDF, each on its own page sized to that image, with JPEG carried over unchanged and PNG kept lossless.

How to use it

  1. Pick one or more images
  2. Set a page margin if you want white space around the picture
  3. Create the PDF and download it

Things that trip people up

  • A JPEG goes into the document as its own compressed stream, byte for byte — no second generation of compression.
  • A PNG loses no pixels either, but it is re-wrapped in the PDF image encoding, so its share of the output size can differ from the source. WebP, BMP and GIF are converted to PNG in the browser first, which is lossless and often larger.
  • Each page takes the pixel dimensions of its image, so a portrait photo and a landscape screenshot end up on differently sized pages.

Questions people ask

Are my images compressed?
A JPEG is not touched: its compressed bytes are embedded as they are, so output quality equals input quality exactly. A PNG loses nothing either, it is merely stored in a different lossless encoding. Only images that need a format change (WebP, BMP, GIF) go through a re-encode, and that step is lossless.
Why is my PDF much bigger than I expected?
Because the PDF contains the full-resolution originals rather than thumbnails. That is deliberate — it is what preserves quality — but if you need a small file, resize or compress the images first and then combine them.
Can I make every page the same size, like A4?
Not in this tool: pages follow each image's own dimensions so nothing is stretched or letterboxed. If you need uniform pages, place the images into a document editor and export, or use a print-to-PDF step.
Does the order of images matter?
Yes — pages appear in the order the files were selected. Check the list shown after picking to confirm the sequence before generating.
Is a scanned document still searchable?
No. This produces a PDF whose pages are pictures; there is no text layer, so search and copy will not find words. Optical character recognition is a separate step.

Next steps

Open the Images to PDF tool

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