How-to guides for PDF watermarks
These guides cover the cases the editor cannot fully replace: Acrobat image marks, Preview’s missing menu, mobile quirks, scans, and digital signatures.
If you only need text on a PDF
Skip the platform guides and use the add-watermark tool. Come back here when the file is signed, scanned, or stuck in Word.
How to add a watermark to a PDF
How to add a watermark to a PDF: free browser tool, Acrobat Pro, Word export, and Mac Preview. Steps, limits, and when to use each method. No upload here.
How to add a confidential watermark to a PDF
How to add a confidential watermark to a PDF. Wording, color, every page, and why a visual label is not encryption. Free browser method, no file upload.
How to add a draft watermark to a PDF
How to add a DRAFT watermark to every PDF page. Word header traps that skip page 1, Acrobat Pro steps, and a free no-upload browser method today.
How to watermark a PDF on Mac
How to watermark a PDF on Mac. Preview has no watermark tool. Use this free browser method, Acrobat Pro, or a Quartz workaround. No file upload here.
How to watermark a PDF in Adobe Acrobat
How to watermark a PDF in Adobe Acrobat Pro. Why Reader cannot add one, and how this free no-upload browser tool compares for text on every page.
How to watermark a PDF on iPhone or Android
How to watermark a PDF on iPhone or Android in the mobile browser. No App Store install, no account, no upload. Memory limits apply to large scans.
How to watermark a scanned PDF
How to watermark a scanned PDF online. Scans are images, but you can still overlay text. Free, no account, no upload. OCR is optional. Quality tips inside.
Should you watermark a signed PDF?
How to watermark a signed PDF: adding a mark invalidates a digital signature. When that is acceptable, keep a signed original, and send a marked copy.
Definitions and troubleshooting sit in Learn.