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Compress PDF

Shrink large PDF files without losing readability, so they're easier to email, upload, or store.

Select PDF files

or drag and drop files here

Got a password-protected PDF? Unlock it here first

How to compress a PDF

1

Upload your file

Select the PDF file you wish to compress from your device, or simply drag and drop it directly into the designated drop zone.

2

Choose compression level

Select 'Extreme' for maximum size reduction, 'Recommended' for a perfect balance of quality and size, or 'Less' for lossless structural compression.

3

Download optimized PDF

Click 'Compress PDF' to securely process your file. Once finished, instantly download your vastly smaller, optimized document.

How to Compress PDF

1

Upload your large file

Drag and drop the oversized PDF you need to shrink into the upload area.

2

Select compression level

Choose "Extreme" for the smallest file size, "Recommended" for a standard balance, or "Less" to retain maximum image quality.

3

Download optimized PDF

Click "Compress" and your browser will quickly optimize the file. Download your lighter PDF immediately.

Frequently Asked Questions

How much smaller will my PDF actually get?▼
Ia bergantung kepada kandungan. PDF berat imej (imbasan, laporan foto) boleh mengecut sehingga 80%, manakala dokumen teks sahaja biasanya melihat pengurangan 10–30% yang lebih sederhana kerana terdapat kurang untuk dioptimumkan.
Will my PDF look blurry after compressing?▼
Hanya jika anda memilih "Melampau", yang menukar beberapa ketajaman imej untuk fail terkecil yang mungkin. "Disyorkan" dibina untuk memastikan teks jelas dan imej yang jelas sementara masih memotong fail dengan ketara.
Is there a file size limit for compression?▼
Mampatan berjalan pada peranti anda sendiri, jadi siling praktikal ialah RAM anda yang tersedia dan bukannya penutup tetap — kebanyakan komputer riba dan telefon mengendalikan fail sehingga 100MB dengan selesa.
What's the difference between the compression levels?▼
"Less" applies lossless, structure-only compression with no visible quality change. "Recommended" balances size and quality for everyday sharing. "Extreme" prioritizes the smallest file, which can slightly soften high-resolution images.
Can I compress a PDF that's already been compressed once?▼
Ya, walaupun keuntungan akan menjadi lebih kecil untuk kali kedua — apabila imej dan strim sudah dioptimumkan, terdapat lebih sedikit data berlebihan yang perlu dikeluarkan.

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