How much can I reduce a PDF file?

FileSwiftly typically reduces PDF size by 40-70% depending on content. A 5 MB PDF often becomes 1.5-2 MB on Recommended mode, and under 1 MB on Maximum mode.

Is there a file size limit?

The free tool supports PDF files up to 50 MB. FileSwiftly Pro supports files up to 500 MB with batch processing.

Is my PDF safe and private?

Yes. Your file is uploaded over HTTPS, processed on our secure servers, and automatically deleted after 1 hour. We never store or share your files.

Does compression reduce PDF quality?

In Recommended mode, the visual quality difference is imperceptible. Maximum mode reduces image resolution, ideal for email. Quality mode is for high-res printing.

Can I compress multiple PDFs at once?

Batch compression is available with FileSwiftly Pro. The free tool compresses one file at a time.

Comprimi PDF

Riduci le dimensioni dei tuoi PDF senza perdita di qualità visibile.

~5–15 secondi Riduzione media: 40–70% File eliminato dopo 1h Max 50 MB

Trascina il tuo PDF qui

o clicca per selezionare

Solo PDF — Max 50 MB

Livello di compressione

Massimo

Dimensione minima

Consigliato

Buon equilibrio

Qualità

Alta fedeltà

Risultati concreti

Esempi reali di compressione su file tipici

Prima / Dopo

4.8 MB

Prima

1.9 MB

Dopo

60% riduzione media

60%

riduzione media

tempo medio

Riduzione per modalità

Modalità massima −70 al −80%

Prima

100%

Dopo

25%

Modalità consigliata −55 al −65%

Prima

100%

Dopo

40%

Modalità qualità −30 al −40%

Prima

100%

Dopo

65%

"Ho ridotto i miei PDF da 4 MB a 1,2 MB in pochi secondi. Perfetto per l'email!"

Connessione sicura HTTPS

File eliminato dopo 1h

50.000+ file/giorno

Elaborazione in meno di 30s

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.

Hai bisogno di più?

Comprimi fino a 12 PDF in una volta con Pro

Elaborazione in batch File fino a 500 MB Accesso API REST

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