Site Toolbox

PDF 工具箱19

19 項 PDF 處理全部在瀏覽器內完成，檔案不上傳伺服器

合併與拆分5

頁面編輯4

格式轉換3

水印與最佳化4

實用工具3

Recently used:

Tool directory

JSON tools13

Code & markup formatting34

Encryption & encoding29

Text processing22

Network diagnostics11

Webmaster tools15

Calculators & converters16

Everyday utilities11

Reference tables11

Network Tools14

Overview

Reachability

AI checks

Service status

Browser

PDF Toolbox19

Merge & split

Page editing

Convert

Watermark & optimise

Utilities

Partner links:

How to use

  1. 1Open the tool you need from its category: merge and split, page editing, conversion, watermark and optimisation, utilities - each is its own page.
  2. 2Drop files on the upload area. Tools that accept several files take them at once, and the order in the list is the processing order - drag to reorder.
  3. 3Set the options, run it, and the browser downloads the result straight away. Nothing waits on a server.

Every PDF is handled in this tab by JavaScript. Files never leave your device and we keep no copy.

Frequently asked questions

Are my files uploaded to a server?

No. Everything runs in this tab in JavaScript, so the file never leaves your device - no upload queue and no server-side copy.

How large a PDF can it handle?

It depends on the memory of your device. Tens of megabytes or a couple of thousand pages are usually fine; for bigger files, split by page range first and process the parts.

Do results stay on this site?

No. Output exists in memory only, nothing is kept after you download it, and a page reload discards it - so save it right away.