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Compress PDF

All processing is done in your browser. Files are never uploaded to any server, guaranteeing 100% privacy and confidentiality for your data.

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Note: Browser-side compression primarily rebuilds the PDF structure and removes unused objects to reduce size. For files that are already optimized, compression may have limited effect.

100% Client-Side Privacy Protection: Processed directly in your browser via WebAssembly so sensitive contracts and statements stay private.

線上 PDF 無損壓縮與企業郵件附件瘦身方案

解決銀行申貸財力證明、政府公文系統上傳、履歷作品集與企業 Email 附件超過 10MB/25MB 上限的問題,兼顧清晰文字辨識度與極致檔案體積縮減。

❓ Frequently Asked Questions

為什麼掃描版 PDF 檔案特別大?如何有效縮小?

高 DPI 彩色掃描圖層會佔用大量空間。透過智慧重取樣與多餘中繼資料清理,通常能縮減 40%~75% 檔案大小。

壓縮個人身分證件或貸款財力證明安全嗎?

100% 安全,純前端瀏覽器本地壓縮,個人隱私證件與存摺明細絕不離開您的電腦或手機。