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Compress PDF to 100KB

Shrink a PDF down to under 100 KB — for strict portal and form upload limits.

Select a PDF to compress

Click to choose, or drop a file here

Related PDF tools

Compress PDF to 200KBShrink a PDF down to under 200 KB.Compress PDF to 500KBShrink a PDF down to under 500 KB, with more headroom for image quality.Compress to Target SizeShrink a PDF down until it fits under a size you choose — for email or upload limits.Compress PDFShrink file size by re-encoding page images.

Compress PDF to 100KB — frequently asked questions

Will 100 KB always be possible?+

Not always. A short, mostly-text PDF gets there easily. A long, image-heavy or scanned document may not fit without unreadable quality loss — the tool tells you honestly if it couldn't hit the target.

Will the text still be readable?+

Yes — text stays selectable and sharp far longer than images do, since the compression works by re-rendering and shrinking page images, not by degrading text.

Why 100 KB specifically?+

It's a common hard limit on government portals, exam boards, and some job application forms. If your form allows more, try Compress PDF to 500 KB or 1 MB for a better-looking result.

Caricate i miei file su un server?+

No — ogni strumento qui elabora i tuoi file interamente sul tuo dispositivo, e non viene caricato nulla su un server. L'unica eccezione sono gli strumenti IA, che inviano il testo estratto (non il file) a Claude per svolgere il loro lavoro.

C'è un limite di dimensione del file?+

Non imponiamo alcun limite artificiale, ma poiché l'elaborazione avviene nel tuo browser, i file molto grandi (oltre 500 MB o 1.000 pagine) sono limitati dalla memoria del tuo dispositivo, non da noi.