PDF to Black & White
Convert every page of a PDF to grayscale or pure black & white for cheaper ink usage and sharper laser printing. All processing runs 100% in your browser — nothing is uploaded.
Drop a PDF here, or click to select
All processing runs 100% in your browser — nothing is uploaded
Large file
This PDF is large (> 25 MB) and high-resolution conversion may use significant memory. If your browser slows down, try 150 DPI or split the PDF first.
⚠ This tool rasterises each page to an image — text will no longer be selectable or searchable in the output PDF.
Conversion mode
Pixels brighter than threshold become white, others black. Only applies to Pure B&W mode.
Higher DPI preserves detail but increases file size and memory use. Large pages are automatically capped to avoid out-of-memory errors.
Preparing…
Conversion result
Pages
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Original
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B&W PDF
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Saved
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Preview — first page
Original
Converted
Error