QuickRectify QuickRectify
✨ 100% Free • Client-Side Security • Zero Server Uploads

Add Watermark to PDF Online Free (Text & Image)

Need to mark your creative drafts as confidential, brand business presentations with your company logo, or prevent unauthorized redistribution? QuickRectify stamps custom text and image watermarks across your PDFs in seconds.

👥 Built for Students, Pros & Teams • 🔒 100% Local • ⚡ WebAssembly Speed
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Select PDF Document to Watermark PDF

or drag and drop your file directly into this secure browser workspace

Choose PDF File

Files are processed in local memory • Max size: Unlimited

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Visual Operational Manual

Looking for step-by-step instructions with screenshots?

Read our verified human guide detailing options, parameters, and edge-case handling.

View Guide with Screenshots →
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How to use Watermark PDF online for free

Follow these simple steps to process your file in seconds

1

Upload document: Drop your PDF into the secure workspace above.

2

Choose watermark type: Select 'Text Watermark' (e.g., CONFIDENTIAL, DRAFT, DO NOT COPY) or 'Image Watermark' to upload your logo.

3

Adjust styling: Customize font, color, rotation angle, opacity/transparency, and position (center, diagonal, or corner).

4

Apply & download: Stamp your watermark across all or selected pages and download your branded PDF instantly.

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Custom Text & Logo Stamps

Stamp 'CONFIDENTIAL', 'SAMPLE', 'COPY', or upload full-color transparent PNG logos.

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Precision Opacity & Rotation

Fine-tune transparency so watermarks remain clearly legible without obstructing document text.

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100% In-Browser Processing

Watermarking executes locally in browser RAM. Your proprietary files never leave your device.

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Always Free & Unlimited

Watermark unlimited documents and pages with zero fees or unwanted third-party branding.

Why Use QuickRectify Watermark PDF?

Distributing sensitive business proposals, pitch decks, or copyrighted creative work without watermarks creates risks of unauthorized sharing or intellectual property theft. Stamping a prominent 'CONFIDENTIAL' or company logo across your pages alerts recipients to confidentiality obligations and discourages leakage.

QuickRectify provides precise control over watermark positioning, rotation angles (such as standard 45-degree diagonal), font families, font sizes, colors, and opacity levels. You can ensure that your watermark is clearly visible while keeping the underlying text completely legible.

In addition to custom text watermarks, you can upload transparent PNG image logos to create professional corporate stamps. Choose whether to apply the watermark across all pages or restrict it to specific sections.

All processing happens locally inside your web browser using WebAssembly. Your documents are never uploaded to any remote server or stored in third-party caches. Enjoy unlimited watermarking with zero watermarks added by us.

QuickRectify vs Other Online PDF Tools

Compare our privacy-first architecture with traditional cloud-based document converters.

Capability QuickRectify (Watermark PDF) Traditional Cloud Converters (iLovePDF, Smallpdf, PDF24)
Watermarking Privacy 100% Local (Never leaves device) Uploaded to cloud server
Customization Controls Full rotation, opacity & position sliders Basic fixed position templates
Logo Image Watermarks Supports transparent PNG logos for free Locked behind Pro paid tiers
Page Limitations Unlimited pages watermarked Capped at 10-20 pages on free plan
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Frequently Asked Questions

Quick answers to common questions about Watermark PDF

How do I put a watermark on a PDF online for free?

To put a watermark on a PDF online, upload your document to QuickRectify Watermark, enter your custom text (like CONFIDENTIAL or DRAFT) or select a transparent logo, choose opacity and position, and click Apply. The entire process runs 100% in your browser without uploading files.

Can I add both text watermarks and image logos?

Yes! You can type custom text (like 'CONFIDENTIAL' or 'DRAFT') or upload your organization's transparent PNG logo.

Can I adjust the transparency so the watermark doesn't hide my text?

Yes, you have full control over opacity, allowing you to set a subtle, semi-transparent watermark that protects your content without obscuring legibility.

Can I choose which pages receive the watermark?

Yes, you can apply the watermark across all pages or specify custom page ranges.

Are my proprietary documents uploaded to external servers?

Never. The watermarking engine runs locally in your browser using WebAssembly. Your files remain 100% private.

Is there any limit on how many files I can watermark?

No limits. You can watermark as many documents and pages as you need completely free.

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