What is the difference between extracting images and converting a PDF to images?

Extracting pulls out the original embedded raster images (the actual photos and logos stored inside the file) at their native resolution. Converting a PDF to images rasterises each whole page — text, vectors and all — into one picture per page. Use this extractor when you want the source photos back; use a PDF-to-images tool when you want a snapshot of each page.

Why does the tool say no images were found?

Some PDFs contain only text and vector graphics with no embedded bitmaps — there is simply nothing raster to pull out. Charts, line art and typeset text are drawn as vectors, not stored as images, so they cannot be extracted. In that case, rasterise the pages with a PDF-to-images tool instead.

Are my files uploaded anywhere?

No. The PDF is parsed entirely inside your browser using a local WebAssembly engine. Nothing is sent to a server, so confidential documents, scans and contracts never leave your computer.

In what format are the extracted images saved?

Every image is re-encoded to lossless PNG, which preserves transparency where the original had it. PNG is a safe universal format that opens everywhere, and re-encoding avoids exposing the odd internal codecs some PDFs use.

What does the de-duplication option do?

It computes a small perceptual fingerprint of each image and skips ones that look identical to images already kept. This removes the header logo, watermark or letterhead that repeats on every page, so you are left with the unique pictures rather than dozens of copies of the same graphic.

Is there a limit on file size or number of pages?

The tool accepts PDFs up to 250 MB and has no page limit, but very large files take longer because every page is scanned in your browser. A progress bar shows which page is being processed so you can tell it is still working.

Extract Images from PDF

Extract Images from PDF pulls the original embedded pictures — photos, logos, scanned figures, screenshots and product shots — out of any PDF and lets you save them individually or all at once as a ZIP. It is built for anyone who has been handed a PDF and needs the images back out of it: a designer reclaiming assets from a brochure, a researcher lifting figures out of a paper, a marketer grabbing product photos from a supplier catalogue, or anyone rescuing scans trapped inside a report.

Unlike rasterising a page into a single flat picture, this tool reaches into the file structure and recovers each stored bitmap at its native resolution, exactly as it was embedded — so a 2400-pixel photo comes out at 2400 pixels, not shrunk to whatever the page happened to display. Everything happens 100% in your browser: your PDF is never uploaded, which matters when the document is a confidential contract, a medical scan or an unreleased design.

How it works

When you open a PDF the tool parses it with a local WebAssembly PDF engine and walks the drawing instructions of every page. Each time the page paints an image XObject — the internal object that holds an embedded bitmap — the raw pixel data is decoded into a canvas and re-encoded to a clean, lossless PNG. Transparency is preserved where the source image had an alpha channel, and you will see a checkerboard behind transparent images in the preview grid.

Two controls keep the output tidy. A minimum size filter drops sub-icon graphics like bullet glyphs and hairline rules, and an optional de-duplication pass fingerprints each image so the logo or watermark that appears on every page is kept only once. A progress bar reports the current page and a running count of images found, so large documents stay transparent about what they are doing. From the results you can download any single image as a PNG or click Download all as ZIP to get every picture in one compressed archive named after your document.

Example

Suppose you receive a 12-page supplier catalogue PDF. Every page carries the same company logo in the header, and pages 3 to 11 each show two product photos. Open the file, leave Skip repeated images ticked, and set the minimum size to 64 pixels. The tool scans all 12 pages, finds 18 unique product photos at their full embedded resolution, skips the nine extra copies of the repeated logo, and ignores the tiny page-number icons. You get a clean grid of 18 thumbnails, then click Download all as ZIP to save catalogue-images.zip containing files named p003-img01.png, p003-img02.png and so on — ready to drop straight into a slide deck or product database.

Because the whole process is local, the same workflow is safe for sensitive material: a signed agreement, an internal pitch deck or a passport scan never touches a network.