PDF Tools
Merge, split, compress, rotate, and convert PDF files directly in your browser using pdf-lib.
合并 PDF
将多个 PDF 文件合并为一个文档。
拆分 PDF
从 PDF 文件中提取特定页面。
压缩 PDF
通过优化内部结构减小 PDF 文件大小。
旋转 PDF
将 PDF 页面旋转 90°、180° 或 270°。
添加页码
为 PDF 的每一页添加页码。
PDF 转 JPG
将 PDF 页面转换为高质量 JPEG 图片。
PDF 添加水印
为 PDF 页面添加文本水印。
PDF 页面重排
将 PDF 中的页面重新排列为任意顺序。
扁平化 PDF
将表单字段转换为静态 PDF 内容。
编辑 PDF 元数据
编辑或删除 PDF 文档属性。
签署 PDF
在 PDF 上添加文本签名印章。
JPG 转 PDF
将图片转换为 PDF 文档。
从 PDF 提取文本
从 PDF 文档中提取所有文本内容。
Delete PDF Pages
Remove unwanted pages from a PDF document.
Reverse PDF
Reverse the page order of a PDF document.
Extract PDF Pages
Extract specific pages into a new PDF.
Extract Odd/Even Pages
Extract only odd or even numbered pages.
Resize PDF Pages
Change PDF page dimensions to standard sizes.
Crop PDF
Crop margins from PDF pages.
Insert Blank Pages
Add blank pages at any position in a PDF.
Duplicate PDF Pages
Create copies of specific pages within a PDF.
PDF to PNG
Convert PDF pages to high-quality PNG images.
Add Header & Footer
Add custom header and footer text to PDF pages.
Add Text to PDF
Add text annotations at any position on PDF pages.
Add Image to PDF
Stamp or overlay an image on PDF pages.
Learn PDF Tools
Key concepts and practical guides to level up your workflow.
📖 术语表
覆盖在PDF页面上的可视标注元素,添加补充信息而不改变底层页面内容。注释用于审阅、协作和添加交互式元素。
A sequence of operators and operands in a PDF that describe the appearance of text, …
一种PDF优化技术,重新排列文件内部结构,使第一页可以立即显示,而其余内容在后台加载。线性化PDF提供更快的网页浏览体验。
由Adobe创建的通用文件格式,可在所有设备和操作系统上保留文档的精确布局、字体和图形。PDF是数字文档的事实标准,用于合同、报告、表单和出版物。
A cryptographic signature embedded in a PDF that verifies the signer's identity and ensures the …
A PDF standard (ISO 16612-2) optimized for high-volume variable-data printing like personalized marketing and invoices.
PDF的ISO标准化版本,专门为电子文档的长期数字保存而设计。PDF/A消除了可能在未来导致渲染问题的功能,如外部字体依赖和JavaScript。
The standard interactive form technology in PDF documents, supporting text fields, checkboxes, radio buttons, and …
📘 指南
Combining multiple PDF documents into a single file is one of the most common document tasks. This guide walks you through merging PDFs while preserving …
Large PDF files are difficult to share via email and slow to load on mobile devices. Learn how PDF compression works and how to strike …
Each document format serves different purposes. PDF excels at preserving layout, DOCX is ideal for collaborative editing, and ODT offers open-source compatibility. This comparison helps …
Converting between Word, Google Docs, LibreOffice, and PDF formats is common in collaborative workflows. This guide covers conversion paths that preserve formatting and identifies features …
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