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MERGE
Merge PDFs
Combine files in any order; bookmarks and links kept when possible.
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Merge, split, organize, compress, password protect/unlock, plus convert, watermark, remove watermark, and page numbers.
Tidy scattered documents; files stay in your browser.
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SPLIT
Split PDF
依頁碼範圍、每 N 頁，或實驗性書籤切分；多份打包 ZIP。
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ORGANIZE
Organize pages
重排、刪頁、旋轉，讓每一頁各就各位。
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COMPRESS
Compress PDF
Light repack, embedded JPEG re-encode, or lossy full-page redraw.
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PASSWORD
Password protect / unlock
Add an open password or unlock when you already know it. Not a cracker.
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TO IMAGE
PDF to images
匯出 PNG／JPG；多頁打包 ZIP，可指定範圍與 DPI。
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FROM IMAGE
Images to PDF
多圖合成 PDF，可重排並選擇符合圖片或 A4。
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WATERMARK
Text watermark
半透明文字、透明度／位置／角度可調。
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REMOVE WATERMARK
移除浮水印
盡力移除半透明文字疊加；無法保證燒進圖片者。
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PAGE NUMBERS
加上頁碼
「第 n 頁」或 n／total，位置可選。
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ROTATE
旋轉整份
整份文件一次旋轉 90°／180°／270°。
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BLANK PAGES
Remove blank pages
選檔後自動偵測疑似空白頁；確認結果後再刪。
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