How many files can I upload at once?

The compressor accepts multiple images in one selection. Each file is processed and bundled into a ZIP when you download the batch.

Can I set the same width for every photo?

Use the editor resize panel for individual files, or set a social preset chip on the compressor before you run the batch.

Bulk Resize Images Online — Batch Compress Free

JPEG compression (canvas → PDF) 80%

Lower = smaller file, more soft/blocky pages. Higher = sharper pages, larger file. 100% = least JPEG compression (still JPEG, not lossless).

More compression Balanced No compression (100%)

Render zoom (pdf.js supersample) 150%

Pages are drawn larger than the output width, then downscaled before JPEG. Higher zoom = sharper text, slower + more memory (up to 500%). 100% = no supersample.

100% (faster) 150% 500% (max detail)

AVIF → JPEG bridge — when supported, try canvas→AVIF→JPEG per page and keep the smaller JPEG (AVIF still isn’t stored inside the PDF). Retry stronger if needed — if the first pass isn’t smaller, run one stronger pass (lower width + JPEG quality).

Bulk Resize & Compress

🔍 Interactive Quality Inspection (Slide to Compare)

Compression Complete!

Crop

Resize

Transform

Download format

Frequently asked questions

Install FileShrinkr