How to Add a Watermark to a PDF on Android (No App Download)
Stamp a PDF with text or image watermark on Android in Chrome — free, no app install, no Google account required.
Most Android PDF watermark apps require subscriptions or show intrusive ads. FixMyPDF's watermark tool runs in Chrome on any Android phone — tap to add text or image watermarks and download the stamped PDF without installing anything.
Open Chrome on Android
Open Chrome on your Android device and go to fixmypdf.in/tools/watermark-pdf. Tap "Select PDF" to choose your document from local storage or Google Drive via Android's file picker.
Type Your Watermark Text
Tap the text input and type your watermark using Android's keyboard: CONFIDENTIAL, DRAFT, your name, or any custom text. Use the size slider to set how large the text appears. Choose a colour — red or grey are most common for official document stamps.
Set Opacity and Rotation
Adjust opacity (30–40% is standard for a readable but non-obstructive diagonal stamp). Set rotation to 45° for the classic diagonal look. These settings are saved for the session so you can watermark multiple PDFs with the same settings without reconfiguring.
Download the Stamped PDF
Tap "Add Watermark" and the stamped PDF downloads to your Downloads folder. Open it in your Files app to verify, then share via Gmail, WhatsApp, or save to Google Drive for distribution.
Adding a Logo Watermark on Android
If you have a company logo saved in your Android gallery or Files app, tap "Image Watermark" and select the PNG file. Logo files with transparent backgrounds look best. Set opacity to 20–25% so the logo is visible but the document content remains readable.
Use Case: Watermarking Scanned Documents on Android
A common Android scenario: you've scanned an important document with Google Drive or Microsoft Lens, and need to stamp it CONFIDENTIAL before emailing. Open our tool in Chrome, select the scanned PDF, add the watermark, and share directly from the Downloads folder.
More Android PDF Tools
After watermarking, use our compressor on Android to reduce file size before sending via WhatsApp or email (which have file size limits). Or add a password to the watermarked PDF for extra security.
Try Watermark PDF Now — Free
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Open Watermark PDF