Бясплатна PDF кампрэсар
Сціскайце файлы PDF, каб паменшыць іх памер. Без страты якасці, без абмежавання памеру файла.
Перацягніце файлы сюды або націсніце для прагляду
PDF без абмежавання памеру файла
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.
- 1You drop a PDFThe file is read into your browser's memory as a byte array. Nothing leaves your device.
- 2pdf-lib parses the PDF structurePDFs 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.
- 3Images are re-encoded at your chosen qualityYou 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.
- 4A new PDF is written and offered for downloadpdf-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?
Звязаныя інструменты
Зліццё PDF
Аб'яднанне некалькіх файлаў PDF у адзін. Перацягніце, каб змяніць парадак старонак.
Малюнак у PDF
Пераўтварэнне малюнкаў у PDF. Змяніце парадак старонак, усталюйце памер і палі.
PDF Redactor
Black out sensitive text in a PDF for good. Pages are flattened to images so the hidden content is permanently destroyed — not just covered. Runs entirely in your browser.
