Why use an online page counter instead of opening a reader?

Our tool instantly reveals technical metrics including exact millimeter dimensions, orientation shifts between pages, and standard paper sizes for printing estimation.

Does it work with large 500+ page PDF documents?

Yes! Client-side parsing reads only the document catalog, counting thousands of pages in milliseconds.

PDF 100% 客户端

PDF Page Counter & Inspector

快速计算 PDF 页数、检测页面尺寸（A4、Letter）、方向和文档统计信息。

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即时速度

WASM 加速

Drag & Drop your files here

or click to browse from your device

Instantaneous page count calculation without uploading to servers

Automatic paper size detection (A4, US Letter, A3, Legal, A5)

Per-page dimensions in millimeters (mm) and typographic points (pt)

Portrait and Landscape page orientation breakdown

Estimated document reading time calculator

简单的工作流程

如何使用这个工具

只需三个快速步骤即可获得结果，无需任何学习曲线。

Select PDF

Upload or drop your PDF document.

Instant Count

View total pages, paper format, and document metrics immediately.

Inspect Pages

Review the breakdown table showing individual dimensions per page.

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PDF Page Counter & Inspector

Drag & Drop your files here

如何使用这个工具

Select PDF

Instant Count

Inspect Pages

常见问题解答

相关工具

PDF Metadata Editor

Split PDF

Word Counter

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PDF Page Counter & Inspector

Drag & Drop your files here

如何使用这个工具

Select PDF

Instant Count

Inspect Pages

常见问题解答

相关工具

PDF Metadata Editor

Split PDF

Word Counter