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Mampat PDF Files Online
Mampat PDF files using lossless or lossy algorithms. Choose from preset levels or customize DPI, JPEG quality, and more for the perfect balance of size and quality.
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Tiada akaun diperlukan
Guna tanpa had, tiada sekatan
Dikuasakan oleh WebAssembly
Lepaskan fail di sini, atau klik untuk cari
Single PDF file
Atau tekan Ctrl+V untuk tampal
Cara Mampat PDF
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Upload your PDF
Drop your PDF into the upload area or klik untuk cari.
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Choose compression level
Select Low (lossless), Medium, High, or Custom. Adjust settings and preview the quality comparison.
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Compress and download
Click "Compress & Download" — see the before/after size savings and download your optimised PDF.
Ciri-ciri
- 4 compression levels including custom
- Side-by-side quality preview
- Before/after file size comparison
- Custom DPI and JPEG quality controls
- Grayscale conversion option
Soalan Lazim
- How much will my PDF be compressed?
- Lossless compression typically reduces size by 10–30%. Medium (default) achieves 40–70%. High compression can reach 60–90% reduction.
- Will compression reduce visual quality?
- Lossless mode maintains full quality. Medium and High modes re-encode images — use the side-by-side preview to check quality before downloading.
- What is the Custom mode?
- Custom lets you set the exact JPEG quality (1–100), DPI target, grayscale conversion, and font stripping for precise control.
- Does this work for scanned PDFs?
- Yes — scanned PDFs (which are essentially images) benefit significantly from image re-encoding compression.
