We render each PDF page to a canvas, apply a grayscale CSS filter, then re-create the PDF using pdf-lib.

No, everything happens locally in your browser.

Does it reduce file size?

It may slightly reduce or increase size depending on the content. Grayscale images generally compress better.

⬛ PDF ग्रेस्केल कन्वर्टर

अपनी PDF को काले-सफ़ेद में बदलें

ग्रेस्केल में बदलने के लिए PDF चुनें