PDF and images: both directions explained simply

Updated: 2026-07-03 · 3 min read

PDF and images are the two everyday document formats - and one constantly needs to become the other: bundling receipts, sending a contract page as an image, combining scans. Both directions work without installing software.

Images → PDF: when it makes sense

Sending several photos or scans as one file - receipts for taxes, pages of a photographed contract, or a portfolio. A PDF locks in the order and looks more professional than ten separate attachments.

Handy: in the BiGimg tool you sort pages with arrow buttons and choose whether each page keeps the image size or is centered on A4 - the latter is the right pick if the PDF will be printed.

PDF → images: when the reverse wins

Embedding a single PDF page into a presentation, sharing it on social media, or uploading to a form that only accepts images - for that, export the pages as JPG or PNG.

On resolution: 144 dpi is the all-rounder for screens. For printing or heavy zooming take 288 dpi; 72 dpi is enough for small previews.

The privacy point

PDFs are often the most sensitive files of all: contracts, invoices, ID copies. Most online converters upload them to third-party servers - an unnecessary risk.

Both BiGimg PDF tools run entirely in your browser: neither the PDF nor the images leave your device. Afterwards, a pass through the compress tool is often worth it if the images will be sent by mail.