Background Color
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Powerful Background Color Features
Any Color
Full color picker with hex code support for exact brand color matching.
Opacity Control
From subtle tints to solid backgrounds with adjustable transparency.
Private Processing
Documents processed locally. No files uploaded to any server.
Convert a black PDF to white
For dark-mode PDFs and scanned slides with light text on black, invert colors to turn black white and light text dark. A white background alone sits behind existing content and cannot replace a painted background or scan.
Upload your PDF, choose Black → White in the background panel, then prepare the export. The existing paid export flow applies. Use Undo to remove the preset before exporting; check the downloaded result against your original.
Inverts every color on every exported page, including photos and logos. Interactive annotations may retain their colors. Dark gray becomes light gray, not pure white. Mixed light and dark pages may need a different tool. The canvas does not preview this export-time effect.
How To Background Color Online for Free
Upload Your PDF
Drop your PDF into the tool. Pages are loaded locally on your device.

Choose Background Color
Pick a color and opacity level. Preview the result on your pages.
Download Colored PDF
Download the PDF with the background color applied behind the content.

Add a background color to PDF pages directly in your browser. Apply a solid color or subtle tint behind the existing page content. Useful for adding brand colors to white documents, creating colored paper effects for certificates and invitations, improving readability with tinted backgrounds, and matching organizational color schemes. Processing runs locally via WebAssembly.
Everything You Need in a Background Color
Color Selection
Full color picker, hex codes, and preset colors for quick selection.
Opacity Range
Fine-grained opacity from 1% to 100% for precise visual control.
Page Ranges
Apply to all pages or specific ranges for section-based coloring.
Live Preview
See the colored background on your pages before applying.
Content Preserved
Background appears behind all existing content without covering anything.
Local Processing
WebAssembly applies backgrounds on your device. Documents stay private.
Frequently Asked Questions
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