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PDF 指南 与操作教程

Edit any PDF onlinewithout uploading it

Change text in its own font, sign a page and type on a form, right in your browser - no detour through Word, and your file never leaves your computer.

编辑 PDF 指南

修改文字、添加批注、填写表单和签名 - 全部在浏览器中完成。

A PDF page with a text cursor in it beside a panel of font, colour and style controls
编辑 PDF

How to edit a PDF

How to Edit a PDF Online: Change Text, Add Notes and Sign

Fixing a date, signing a form, highlighting a clause - none of it should require converting the document into something else. Here is how the editor changes text in place, what it can and cannot do, and why the file never leaves your computer.

9 min read阅读指南
A contract page with a pen angled across it and one line on the page marked in red
编辑 PDF

Sign a PDF online

How to Sign a PDF Online, Free, Without Printing It

A contract needs signing today and there is no printer. Draw your name once, put it on the line, type the date, and save. It takes about two minutes in the browser, and the file never leaves your computer.

10 min read阅读指南
A pen lying across two stacked document pages, one line on the top page marked in red, on a dark field
编辑 PDF

Filling a PDF form

How to Fill In a PDF Form, Even One That Is Not Fillable

You click where your name goes and nothing happens. A great many of the forms people are sent have no fields in them at all - they are pictures of forms. Here is how to tell the two kinds apart in two seconds, and fill either one so it does not look pasted on.

10 min read阅读指南
A PDF page with a pen resting across it, one line of the page marked as the line being changed
编辑 PDF

Make a PDF editable

How to Make a PDF Editable: Two Routes and When to Use Each

You clicked where the wrong date is, typed, and nothing happened. A PDF is not a document you type into, it is a drawing. Here are the two honest ways to change one, and how to tell which your job needs.

10 min read阅读指南

每个工具都有一篇指南

每个工具做什么、什么时候用它，以及上传任何文件前值得了解的设置。