PDF Text Color
Change the color of text in PDF documents for visual customization, emphasis, or accessibility. Perfect for highlighting important content, creating branded documents, or improving contrast.
Drop your PDF here
or click to browse files
Continue Your Pdf Journey
What is PDF Text Color?
This PDF text color tool runs entirely in your browser. It renders each page at 2× resolution using pdf.js, then uses luminance-based ink replacement to swap dark text for your chosen color — the darker a pixel, the more strongly it takes on the new hue. Target all pages or specify individual ones with page-range syntax like "1,3-5". Pick a color with the built-in color picker or type a hex value. The output is a new PDF with each page saved as a high-resolution PNG image. No server upload, no account, and no watermark.
A client-side PDF text recoloring tool that replaces dark ink with any color you choose using luminance-based pixel processing. It uses pdf.js to render each page onto an HTML canvas at 2× scale, then analyzes each pixel's darkness (luminance). The darker a pixel, the more it is treated as "ink" and the more strongly it is recolored to your target color. Light pixels like white backgrounds pass through mostly unchanged. You can target all pages or specify a subset using comma-separated page numbers and ranges (e.g., "1,3-5"). The result is a downloadable PDF where each page is embedded as a high-resolution rasterized PNG. Because the tool works at the pixel level, all dark content — text, line art, dark images — is recolored equally. Text in the output is no longer selectable or searchable. Processing runs in the browser, so the tool works offline after page load and keeps your documents private.
Key Features
- Luminance-based ink replacement — pixel darkness determines how strongly the new color is applied
- Renders each PDF page at 2× resolution for sharp, high-DPI output
- Page targeting with "all" or range syntax like "1,3-5" to recolor specific pages only
- Color picker and hex input for precise color selection
- Preserves light backgrounds while recoloring dark content like text and line art
- Outputs a new PDF with each page embedded as a high-resolution PNG image
- Processes files entirely in the browser — nothing is uploaded to a server
- Works offline once the page has loaded
Common Use Cases
Matching text to brand colors
Replace the default black text in a report or proposal with your company's brand color before sharing it with clients. Enter the exact hex value from your brand guidelines to ensure precise color consistency across all pages or just the cover and key sections.
Creating colored handouts for teaching
Recolor the text of different sections or chapters in distinct colors so students can quickly identify which handout belongs to which lesson. Use page targeting to apply different colors to different page ranges by running the tool multiple times.
Improving readability on dark backgrounds
When pairing this tool with a dark background, change the text from black to a light color so it remains readable. This is useful when preparing materials that will be displayed on screens with dark themes or printed on dark paper.
Adding visual emphasis to specific pages
Recolor the text on a title page, summary, or key findings section to draw attention to those pages while leaving the rest of the document in standard black. Use the page range selector to target only the pages that need emphasis.
Personalizing printed reference materials
Change the ink color of cheat sheets, quick-reference cards, or study guides to a color you prefer for reading — like dark blue or dark green instead of pure black — for a softer, less stark appearance on paper.
How to Use This Tool
Upload your PDF
Click the upload area or drag a PDF file onto it. The tool accepts one file at a time and loads all pages for processing.
Choose your text color
Use the built-in color picker to select a color visually, or type a hex value directly. This is the color that will replace the dark ink on the page.
Set the page range
Choose "all" to recolor every page, or enter specific pages and ranges using syntax like "1,3-5" to target only certain pages. Pages outside the range are left unchanged.
Wait for the conversion
The tool renders each targeted page at 2× scale using pdf.js and applies luminance-based ink replacement. Darker pixels receive more of the new color while light pixels stay mostly untouched.
Download the recolored PDF
Click the download button to save the new PDF to your device. Each page is embedded as a high-resolution PNG image. Your original file is not modified.
Pro Tips
- 1
The tool recolors all dark content equally — text, line art, dark borders, and dark images are all affected. Preview carefully if your PDF contains photos or detailed graphics.
- 2
Keep your original PDF as a backup. The output rasterizes all text into image data, so you lose the ability to select, search, or copy text from the result.
- 3
Use the page range feature to recolor only specific sections instead of the entire document — for example, "1" for just the cover page or "2-5" for an executive summary.
- 4
If you need multiple ink colors in one document, run the tool several times on different page ranges and then merge the resulting PDFs with a separate tool.
- 5
Expect the output file to be larger than the original because each page is stored as a 2× resolution PNG image rather than vector text data.
Frequently Asked Questions
Does the tool only change text, or does it affect images too?
The tool works at the pixel level using luminance — any dark pixel is treated as ink and recolored. This means dark images, line art, borders, and other dark content are recolored along with the text. There is no way to target only text while leaving images unchanged.
Can I apply multiple colors to different text passages?
Not in a single pass. The tool applies one color to all dark content on the targeted pages. To use different colors on different pages, run the tool multiple times with different page ranges and colors, then merge the results.
Can I still select or copy text from the output PDF?
No. The output PDF contains rasterized PNG images of each page rather than vector text. Text is no longer selectable, searchable, or copy-pasteable. Keep your original file if you need text access.
Is my file uploaded to a server?
No. All processing happens in your browser using pdf.js and canvas rendering. The file never leaves your device, so there is no privacy risk and the tool works offline after the page loads.
How does the page range syntax work?
Enter "all" to process every page, or use comma-separated numbers and dash ranges. For example, "1,3-5" processes pages 1, 3, 4, and 5 while leaving all other pages unchanged. Pages outside the range keep their original appearance.
Why is the output file larger than the original?
The original PDF stores text as vector data, which is very compact. The recolored version stores each page as a 2× resolution PNG image, which takes significantly more space. This is a tradeoff of the pixel-level ink replacement approach.