Is this the same as raster compression?

No — we re-save structure when possible. Scanned pages already compressed may not shrink much.

Will fonts or forms break?

pdf-lib preserves page content, but exotic PDF features should be validated after export.

Locally in your browser; nothing is uploaded to SnapTools for this path.

Try PDF to JPG for slide-friendly images, or split the document with PDF Split before emailing.

For supported workflows, files are processed locally in your browser and are not uploaded to SnapTools servers.

Some PDFs ship with verbose object graphs. Re-saving with modern object streams can shave megabytes without touching the visual page contents.

This is not a substitute for OCR cleanup or image recompression, but it is a safe first pass before email attachments or web delivery.

We load the PDF with pdf-lib, write bytes with object streams enabled, and show before/after sizes so you know whether the pass helped.

This path restructures PDF objects — it is not the same as recompressing embedded scans. When savings are small, your PDF may already be optimized.

Combine with PDF Merge after bundling attachments, or export visuals using PDF to JPG when you need raster slides.

Smaller PDFs mean faster uploads to e-signature tools and lighter mobile downloads for field teams.

Because the bytes never leave your tab, you can safely try a repack on sensitive drafts before sharing externally.

Sensitive agreements should still be encrypted at rest after download. Clear browser downloads on shared machines.