Shrink stacks of PDFs 40–90% with Maximum, Balanced, or High-Quality tiers that recompress images and strip metadata. Firms email 25 filings instead of courier — local pdf-lib work, 2 free batches a day.
Runs on pdf-lib
Content reviewed October 2026 · About Toolzum
Rotate, protect, unlock, split, watermark, crop, resize, or flatten dozens of PDFs in one batch. Law firms prep 50 filings for email in an afternoon — runs locally on pdf-lib, 2 free batches a day.
Reduce file size of multiple PDFs at once by compressing images and removing metadata. Law firms preparing document batches for email. Everything runs locally in your browser — nothing is uploaded.
Trims PDF file size by stripping redundant metadata and optimizing object streams — best on text-heavy documents. Cannot recompress embedded images (the main size driver); for scan-heavy PDFs use Bulk PDF Size Reducer. Handles PDFs up to 125MB.
Convert and compress images to AVIF via canvas encoding with 4 presets — Web 1920px/q60, Balanced 2048px/q75 (default), High Quality 3000px/q85, Maximum original-size/q95 — plus free quality (10–100) and max-width (0–4000, 0 = Original) sliders that decouple the preset. Only wider images downscale; single saves as optimized.avif, batches as *.avif in avif-images.zip — local work, 2 free batches a day.
Strip all EXIF metadata from JPEG, PNG, and WebP photos by re-encoding each to JPEG at quality 0.95 (files renamed *-noexif.jpg). Strip-only — no inject mode exists. Agents clean 500 listing shots before upload — local canvas work, 2 free batches a day.
Balanced for emailing (a 25 MB scan set lands near 6 MB), Maximum for worry-free archiving, High Quality for client-facing filings where stamps and seals must stay crisp. Text layers are never touched — only embedded images recompress.
Scanned sets shrink 70–90%; digitally-created PDFs with few images shrink 10–30% since text is already compact. A 10-file, 80 MB scan batch at Balanced typically returns ~15 MB total — emailable as one ZIP.
Yes — links, bookmarks, and form structure pass through; only image streams and metadata change. Flatten signed copies first so signatures render identically everywhere.
No — compression runs locally in your browser on pdf-lib; documents never leave your device. Only the final save counts as one Pro download.
PDF Compressor
Trims PDF file size by stripping redundant metadata and optimizing object streams — best on text-heavy documents. Cannot recompress embedded images (the main size driver); for scan-heavy PDFs use Bulk PDF Size Reducer. Handles PDFs up to 125MB.
Bulk PDF Merger
Join up to 100 PDFs into one document per Pro run with order control and preserved links. Legal teams bind 40 exhibits into one filing — local pdf-lib merge, 2 free batches a day.