How it works
Add a PDF and choose a resolution. Vimorby draws each page with pdf.js, the open-source PDF engine used in Firefox, and saves it as a JPG. Pages are drawn one at a time and each one's memory is released straight away, so long documents don't overload your device.
One page downloads as a single JPG. Several pages download as a ZIP, with files named after the PDF and numbered in order (report-page-01.jpg, report-page-02.jpg …).
Which DPI should I choose?
72 DPI gives small images for previews and messages. 150 DPI is sharp on screens and fine for most sharing. 300 DPI is print quality, but each A4 page becomes about 2480 × 3508 pixels, so files are much larger and take longer.
Very large pages, such as posters and drawings, are drawn at a lower DPI when the full size would exceed what your browser can hold. When this happens, Vimorby shows the DPI actually used for that page.
JPG has no transparency and suits pages with photos. For text, line art and diagrams, PDF to PNG keeps edges crisp without compression artefacts.
Private by design
Your files are processed by your own browser, inside this tab. Nothing is uploaded, so there is no server copy to delete, and the page keeps working if you go offline after it loads.