Compress Image

Why images need compressing

A modern phone photo weighs 3–8MB — fine for one, unmanageable for fifty. Websites slow to a crawl under unoptimized images (and Google ranks them accordingly), email providers bounce oversized attachments, and upload forms reject files over their limits. Compression closes the gap: the same visual image at a fraction of the bytes.

The savings come from smarter encoding and from discarding detail no human perceives — done well, a 5MB photo becomes 500KB with no visible difference at normal viewing sizes.

Quality, dimensions, and format — the three levers

File size is controlled by three things: the quality setting, the pixel dimensions, and the output format. PurePDF exposes all three.

• Quality 75–85% is the sweet spot for photos: dramatic savings, imperceptible loss.
• Resize to your real display size — a 4000px photo shown at 800px wastes 96% of its pixels.
• Switch format for free savings: WebP is ~30% smaller than JPG; AVIF smaller still.
• Batch-compress and download everything as one ZIP when preparing a whole folder.

Metadata stripping included

Compression also strips EXIF metadata by default — camera model, timestamps, and crucially GPS coordinates that reveal where a photo was taken. For images headed to the public web, that is a privacy improvement as valuable as the size reduction. Files are processed over encrypted HTTPS and deleted from our servers within minutes; nothing is retained or reused.

Choosing the right output per destination

For websites, WebP or AVIF at quality ~75 with dimensions matched to your layout. For email attachments, JPG at 80% under 1MB keeps every client happy. For archives you may edit later, compress lightly or keep originals — recompression compounds loss. And when your images belong in a document rather than a folder, JPG to PDF assembles them cleanly.