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Compress PDF to 500KB
Shrink a PDF down to under 500 KB, with more headroom for image quality.
Select a PDF to compress
Click to choose, or drop a file here
Related PDF tools
Compress PDF to 1MBShrink a PDF down to under 1 MB — a good default for email and most upload limits.Compress PDF to 200KBShrink a PDF down to under 200 KB.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 500KB — frequently asked questions
Is 500 KB better than 100 or 200 KB?+
It gives the compressor more headroom, so images generally come out sharper. Use it whenever the form's limit allows it.
Will my file actually reach exactly 500 KB?+
It aims for under 500 KB, not exactly 500 KB — the result is usually a bit smaller than the limit.
你們會把我的檔案上傳到伺服器嗎？+
不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。
有檔案大小限制嗎？+
我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。
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