Extract images from a PDF

A PDF often embeds photos, scans or illustrations you would like to reuse: copy-pasting from a viewer gives a degraded result. This tool walks the graphics resources of every page — the “Image” XObjects of the PDF content stream — then recovers supported bitmaps and exports them as PNG files with sequential names. These filenames are output indices, not a reliable mapping to source page numbers. Several images ship in a ZIP archive, the same way the “extract attachments” tool already bundles attached files. Honest limits: vector artwork (logos, diagrams) is not bitmap data and does not appear; a PDF with no embedded image returns an explicit message. On a scanned document the operation can recover a full-page bitmap when that is how the scan was stored. Unlike page conversion, extraction does not paint text, captions and vector drawings around the image into the result. The adapter decodes supported bitmap objects and redraws them to PNG; it does not return the original JPEG or other compressed file byte for byte. It tracks object identifiers or references to avoid exporting the same encountered image object repeatedly. Consequently, the number of files need not match the number of pages or visible placements. A reused logo may contribute only one export, while a page with several independent photos can contribute several. There is no DPI selector for this operation: the recovered bitmap dimensions determine the PNG size. Review the images before reuse, and keep the source PDF if captions or surrounding context matter. If you need a complete page illustration with its labels, choose page-to-image conversion instead. That renders the visible composition, whereas this extractor only handles supported bitmap painting operations and skips unsupported image objects.