📄

Бясплатна PDF кампрэсар

Сціскайце файлы PDF, каб паменшыць іх памер. Без страты якасці, без абмежавання памеру файла.

Без абмежавання памеру файлаФайлы застаюцца прыватныміУваход не патрабуеццаВольны назаўжды

Перацягніце файлы сюды або націсніце для прагляду

PDF без абмежавання памеру файла

Прагляд файлаў

Вашы файлы ніколі не пакідаюць вашу прыладу. Уся апрацоўка адбываецца лакальна ў вашым браўзеры.

💡 Scanned or image-heavy PDFs shrink the most with the image options. Text-only PDFs are usually already small — if nothing helps, we’ll tell you the file is already optimized rather than hand you a bigger one.

Optimize for your platform

Як гэта працуе

Most "free PDF compressor" sites silently upload your PDF to their servers. Here, compression happens entirely in your browser using pdf-lib — a popular JavaScript library that reads and rewrites PDF files locally.

  1. 1
    You drop a PDF
    The file is read into your browser's memory as a byte array. Nothing leaves your device.
  2. 2
    pdf-lib parses the PDF structure
    PDFs are essentially containers of fonts, images, and instructions. pdf-lib reads the structure and identifies which embedded images can be re-encoded at lower quality to reduce size.
  3. 3
    Images are re-encoded at your chosen quality
    You choose the quality level. Embedded JPEG images are re-encoded with that quality setting. The lower the quality, the smaller the output PDF — but text and vector content remain unchanged.
  4. 4
    A new PDF is written and offered for download
    pdf-lib reassembles the PDF with the compressed images and writes the result to a new in-memory file. Click Download to save it locally.

Safe for contracts, tax returns, medical records, anything sensitive. Your PDF and its contents never reach our server — there is no server in this workflow.

Навошта карыстацца нашым?

Completely free — no hidden costs, ever
No account, email, or login required
Files stay on your device — processing happens in your browser
Works on any device — phone, tablet, desktop
No watermarks on any output
Browser memory limits may apply for very large files

Звязаныя інструменты

Ці быў гэты інструмент карысным?

Часта задаюць пытанні