Text and vector graphics stay sharp. Photos and scans may be lightly downsampled—start with Best quality (recommended). Keep an original copy if you need print-perfect images.

Is this like desktop Ghostscript or Acrobat?

Yes—the same pdfwrite-style presets run locally via Ghostscript WASM. Your file never leaves the device for this tool.

Why didn’t my file get smaller?

Text-only or already-optimized PDFs often have little left to remove. We keep the smaller of the original and compressed output so size never grows.

Files processed locally in your browser.

Compress PDF

Shrink PDFs while keeping text sharp—optimizes embedded images in your browser.

1Upload
2Configure
3Process
4Download

Drop a PDF to compress

or click to browse · files over 20 MB may be slow on phones

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Related workflows

How to Compress a PDF for Email Without Losing Quality
Practical tips to shrink PDF attachments while keeping text and important images readable.

What this tool does

Compress PDF uses a Ghostscript engine in WebAssembly to downsample embedded images and tighten the file structure while keeping vector text and fonts intact. Ideal for email attachments without turning pages into blurry photos.

How to use it

Upload a PDF.
Choose Best quality, Balanced, or Smallest file.
Process and download the smaller file.

Common use cases

Shrink a scan-heavy PDF for email
Meet upload size caps on job portals
Lighten archived meeting packets

FAQs

Will quality drop?: Text and vector graphics stay sharp. Photos and scans may be lightly downsampled—start with Best quality (recommended). Keep an original copy if you need print-perfect images.
Is this like desktop Ghostscript or Acrobat?: Yes—the same pdfwrite-style presets run locally via Ghostscript WASM. Your file never leaves the device for this tool.
Why didn’t my file get smaller?: Text-only or already-optimized PDFs often have little left to remove. We keep the smaller of the original and compressed output so size never grows.