解决方法： 更换为支持编辑的PDF工具，如Foxit PDF Editor、Adobe Acrobat Pro、WPS PDF等。 原因4：PDF只提供了“填写”权限（填写窗体模式） 当PDF文件只可在固定区域输入内容，其他部分不可更改，这可能因为PDF被设置为“可填写窗体”，并且设置了密码保护，限制 ...

A Python utility for merging multiple PDFs and images into a single PDF file. This tool maintains aspect ratios, centers content on custom-sized pages (default A4), and supports recursive directory ...

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Drawing Tablet- Fully-laminated Screen The Artist 13.3 Pro seamlessly combines the glass and screen, to create a distraction-free working environment, virtually no parallax. Drawing Tablet ...

Drawing Display- Fully-laminated Screen Artist 12 Pro seamlessly combines the glass and screen. With virtually no parallax, your cursor appears exactly where you want it, offering a real ...

RunJS is a JavaScript playground for macOS, Windows and Linux. Write code with instant feedback and access to Node.js and browser APIs.

Non-alcoholic fatty liver disease (NAFLD) has rapidly become the most common chronic liver disease globally and is currently estimated to affect up to 38% of the global adult population. NAFLD is a ...