Comprimir PDF
Reduce el tamaño de tus PDFs sin perder calidad. Gratis, rápido y seguro.
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Solo PDF — Máx. 50 MB
Nivel de compresión
Publicité
Resultados concretos
Ejemplos reales de compresión en archivos típicos
Antes / Después
Antes
Después
60%
reducción media
8s
tiempo medio
Reducción según el modo
"Reduje mis PDFs de 4 MB a 1,2 MB en segundos. ¡Perfecto para enviar por email!"
How to compress a PDF online for free?
Compressing a PDF reduces file size by up to 70% with no visible quality loss. FileSwiftly uses Ghostscript, a professional PDF processing engine, to handle your files directly in the browser — no installation or account required.
Three PDF compression levels
Maximum mode shrinks the PDF to the smallest possible size by reducing embedded image resolution — perfect for email attachments. Recommended mode gives the best size/quality balance, ideal for web publishing and presentations. Quality mode applies light compression preserving high fidelity for professional printing.
Which PDF types can be compressed?
Our online PDF compressor supports all standard PDF files: reports, presentations, forms, brochures, eBooks, and invoices. PDFs containing high-resolution images benefit the most from compression. Text-only PDFs see moderate reduction since text is already efficiently encoded in the PDF format.
Security and privacy
Your PDF files are transferred over HTTPS encryption, processed in complete isolation on our secure servers, then automatically deleted after 1 hour. No data is retained, shared, or analysed. FileSwiftly is GDPR-compliant and requires no account.
FAQ
Why compress a PDF?
A compressed PDF downloads faster, fits email attachment limits, and uses less storage space — essential for documents shared online or via messaging apps.
Does compression reduce quality?
In Recommended mode the difference is imperceptible. In Maximum mode embedded images are downscaled, which is fine for screen viewing but not for professional printing.
What is the maximum PDF file size?
The free tool accepts PDFs up to 50 MB. FileSwiftly Pro supports files up to 500 MB with batch compression.
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