All processing happens locally in your browser using WebAssembly. Your files are never uploaded to any server and never used to train AI models.
Grayscale PDFs use only black ink — dramatically reduce ink usage for document printing.
Removing colour data also reduces PDF file size, making it easier to share.
All colour-to-grayscale processing runs locally — no upload required.
LovePDFs is a completely free alternative to Adobe Acrobat, Smallpdf, and ilovepdf. Unlike other online tools that upload your files to remote servers, LovePDFs processes everything in your browser using WebAssembly technology. Your files never leave your device — not even for a second.
This makes LovePDFs the right choice for sensitive documents — contracts, medical records, financial files, government forms, and anything you wouldn't want sent to a third-party server. It's also the only major PDF tool suite that is GDPR-friendly by design, since no personal data or file content ever leaves your browser.
Upload your colour PDF to LovePDFs Grayscale tool and click Convert. The result uses only black ink when printed, saving significant ink costs.
Convert your PDF to grayscale first using this tool, then print normally. Alternatively, set your printer to Grayscale mode in print settings.
Yes — removing colour data from images and vector graphics typically reduces PDF file size by 20-40%.
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