How to Convert a PDF to Grayscale on iPhone
Convert a PDF to black and white grayscale on iPhone without installing an app. Use the free FixMyPDF browser tool in Safari.
Convert a PDF to black and white on iPhone directly in Safari — no app needed. FixMyPDF's Grayscale PDF tool removes all colour from a PDF and produces a print-ready grayscale version in seconds.
When to Grayscale PDFs on iPhone
Preparing a document for black-and-white printing at a library or copy shop. Reducing file size before emailing a coloured report. Converting a colourful brochure to a minimal grayscale handout. Making a PDF more accessible for readers who prefer high-contrast black-and-white.
How to Convert on iPhone
Open Safari on your iPhone. Navigate to fixmypdf.in/tools/grayscale-pdf. Tap "Choose File" and select your PDF from Files or iCloud Drive. Tap "Convert to Grayscale". Download the black-and-white PDF when processing finishes.
No App Download Required
Unlike most grayscale conversion tools on iOS — which require installing an app — FixMyPDF runs entirely in Safari using WebAssembly. Open the URL, convert, download. No App Store, no account.
Saving the Grayscale PDF
After downloading, the file saves to your Safari Downloads folder in the Files app. Tap and hold the file, then choose Share to send via Mail, AirDrop, WhatsApp, or any installed app.
Using AirPrint With a Grayscale PDF
After converting, open the grayscale PDF in Files and tap the Share icon, then "Print". Select your AirPrint-compatible printer. Since the file is already grayscale, the printer prints in black-and-white without any special settings required — saving colour ink costs.
Privacy
Conversion runs locally in your iPhone's browser. Your PDF is never uploaded to FixMyPDF or any server. Safe for personal, medical, and business documents.
Also Works on iPad
The same URL works identically on iPad — open in Safari, upload from Files, convert, download. The larger screen makes it easier to verify the grayscale output looks correct before sending.
Try Grayscale PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Grayscale PDF