Printer refusing to print because black ink is empty?
Convert black-heavy PDF output to color-friendly ink combinations in your browser.
Uncheck this if your PDF has colors you want to keep, and you *only* want to change the black text.
Higher scale = sharper text but much larger file sizes.
Warning: Setting this above 3.0 may cause the browser to freeze on long documents.
Lower quality reduces file size but may introduce visual artifacts around text.
The "Force Monochrome" option converts the entire document to your chosen color. Uncheck it if your PDF has existing colors you want to keep — only dark gray and black pixels will be changed.
All processing happens entirely in your browser. Your PDF is never sent to any server.