免费 PDF 工具 — 在线合并、拆分、压缩与转换

Combine multiple PDF files into a single document

Split by page range, file size, or bookmarks

Rotate pages 90° or 180°, individually or all at once

Pull out specific pages into a new PDF

Remove unwanted pages from your PDF

Drag and drop to rearrange PDF pages

Crop page margins or adjust to A4 / Letter size

Shrink PDF file size — works for regular & scanned PDFs

Convert PDF to editable Word (.docx), with OCR support

Extract tables from PDF into Excel spreadsheets

Convert PDF slides back to editable PowerPoint

Export each PDF page as a high-quality image

Convert Word, PPT, Excel, or images to PDF

Combine one or more images into a single PDF

Click any text in a PDF to edit it directly in your browser

Add text or image watermark to your PDF

Insert customizable page numbers or headers/footers

Create, edit, or delete PDF bookmark outlines

Password-protect your PDF document

Remove password protection from a PDF

Mask sensitive data like ID numbers and phone numbers

Restrict printing, copying, or editing of a PDF

Add a handwritten signature or image stamp to PDF