PDF to Image

How to use PDF to Image

1. Choose your PDF.
2. Set the scale — higher for print, lower for screen or long documents.
3. Render, then download the pages you need.
4. Output is raster: text in the images is no longer selectable or searchable.
5. Long documents at high resolution can exhaust browser memory — work in batches.
6. Rendering happens locally; the PDF is never uploaded.

Rendering is a one-way conversion

A PDF page is a set of drawing instructions: text with font references, vector paths, embedded images. Rendering executes those instructions onto a bitmap, which means the result is pixels and nothing else. Text stops being selectable and searchable, vectors stop being scalable, and there is no route back — converting the image to PDF again gives you a picture of a page, not the page. Keep the original whenever you might need to edit or search it.

Resolution is the setting that matters

The output size depends on the scale you render at. Screen use is fine at 1× to 2×; printing wants roughly 300 dpi, which for an A4 page means around 2,480×3,508 pixels. Going higher does not add detail that is not in the source — a page whose content is a low-resolution scan will not sharpen — but it does multiply memory use, which is the usual reason a browser tab struggles on a long document.

PNG or JPEG

PNG is lossless and the right choice for pages that are mostly text, diagrams or line art, where JPEG artefacts show as fringing around letter edges and make small text look dirty. JPEG is much smaller for pages that are photographs. A text page saved as PNG will often be smaller than the same page as a high-quality JPEG anyway, because large flat areas compress extremely well in PNG.

Memory limits in the browser

Every rendered page is held as an uncompressed bitmap before it is encoded, and an A4 page at 300 dpi is about 35 megabytes in memory. A hundred-page document at that resolution will exhaust a browser tab. Render in batches, or drop the scale for long documents — that is a limit of doing the work locally, and the trade you get in return is that the file never leaves your machine.