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编辑

Invert PDF Colors

Convert PDF pages permanently to dark mode, sepia, or grayscale. 在此设备上运行

添加文件

您的文档仅保留在浏览器中。

仅限PDF文件

Choose a local file to begin.

无上传队列

您的文档仅保留在浏览器中。

无需帐户

无需登录或服务器存储。

完成后清除

使用清除按钮立即释放数据。

指南

如何使用 Invert PDF Colors

Transform PDF pages into Dark Mode (inverted colors), Sepia reading mode, or Grayscale.
输入One PDF, color filter mode (Invert, Grayscale, or Sepia), rendering quality, and optional page selection.
输出One color-transformed PDF.
隐私仅在此标签页中处理。

About invert PDF colors

Transform PDF pages into Dark Mode (inverted colors), Sepia reading mode, or Grayscale. Read bright white academic papers comfortably at night, invert dark slide backgrounds before printing to save toner, or convert color PDFs to grayscale.

Because pages are rasterized to guarantee complete color inversion across vectors and images, selectable text is replaced by rendered page images on modified pages.

How PDFolio helps you invert PDF colors

PDFolio renders each selected page onto an offscreen canvas, applies pixel-level color inversion, luminance grayscale, or warm sepia curves, and rebuilds the PDF locally.

If you only want to extract text for reading in a custom theme, try PDF to HTML or PDF to EPUB.

Before you download

Unselected pages remain in their original vector format.

When the result is ready, download it immediately and open it in your usual PDF viewer to make a final check. You can then use Clear task data to release temporary file references from this browser tab. PDFolio does not create an account, cloud folder, or server-side document history.

A private way to invert PDF colors

PDFolio handles the selected files in the active browser tab. A Web Worker on your device performs the PDF task so the interface can remain responsive; document bytes are not sent to a PDF processing server, upload queue, account database, or advertising platform.

步骤

  1. Add a PDF.
  2. Choose Invert (Dark Mode), Grayscale (Black & White), or Sepia.
  3. Select rendering resolution and target pages, then process and download.

注意事项： Color transformation rasterizes each modified page so background fills, diagrams, and text colors are inverted uniformly.

常见问题

Does Invert PDF invert images and diagrams too?

Yes. Entire selected pages are pixel-inverted so bright diagrams and backgrounds become dark.

Can I convert a color PDF to black-and-white grayscale?

Yes. Select Grayscale in the Color Mode dropdown before processing.

Does invert PDF colors change my original file?

No. PDFolio creates a new file for download. Your source file remains unchanged on your device.

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