合併、拆分、壓縮、簽名、轉檔⋯⋯全部在瀏覽器裡完成Merge, split, compress, sign, convert — all in your browser
檔案不會上傳Files never leave your device
所有處理都在這個分頁的記憶體裡進行，伺服器收不到你的檔案，也不會存在瀏覽器的任何儲存空間（沒有 Cookie、localStorage、IndexedDB）。Everything runs in this tab’s memory. Our server never receives your files, and nothing is written to browser storage (no cookies, localStorage or IndexedDB).
關閉或重新整理分頁、或按「清除全部」，檔案就從記憶體釋放。下載的檔案只會存到你自己的裝置。Closing or reloading the tab — or pressing “Clear all” — releases everything. Downloads go straight to your own device.
程式庫（pdf.js、pdf-lib）都從本站載入。只有遇到沒內嵌中文字型的 PDF 時，會向 jsDelivr 下載字型對照表來顯示縮圖——請求裡只有對照表名稱，不含你的檔案。Libraries (pdf.js, pdf-lib) load from this site. Only when a PDF lacks embedded CJK fonts are font maps fetched from jsDelivr to draw previews — the request contains only the map name, never your file.
拖曳 PDF 或圖片到這裡Drop PDFs or images here或點一下選擇檔案（可一次選多個）or click to choose files (multiple OK)支援 PDF、JPG、PNG、WebP、GIF、BMP；有密碼的 PDF 會先問密碼PDF, JPG, PNG, WebP, GIF, BMP; protected PDFs will ask for the password只在你的瀏覽器處理，不上傳Processed in your browser — never uploaded
點縮圖選取（Shift 選一段）、拖曳排序（手機長按後拖）、雙擊放大。Delete 刪除、Ctrl+Z 復原。Click to select (Shift for a range), drag to reorder (long-press on phones), double-click to zoom. Delete removes, Ctrl+Z undoes.