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Add Your Logo as a Watermark on a PDF

Want to brand your proposals, invoices, or reports with your company logo? Here is how to add a professional logo watermark to any PDF — no design software needed.

Ready to brand your PDF? Skip the guide and go straight to the tool.

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Why Brand Your PDFs with a Logo Watermark?

A logo watermark turns an ordinary document into a branded asset. Here is why companies and freelancers add logos to their PDFs:

  • 1.Professional appearance. Proposals, quotes, and reports with a subtle logo watermark look polished and establish credibility with clients.
  • 2.Brand recognition. Every time someone opens your document, they see your brand. Over time, this builds recognition and trust.
  • 3.Intellectual property protection. Architects, designers, and photographers watermark plans and portfolios to claim ownership and discourage unauthorized use.
  • 4.Document origin tracking. If a document gets forwarded beyond its intended audience, the logo makes it clear where it came from.

How to Add a Logo Watermark (Step by Step)

Watermark PDF is available to Pro and Business users. See pricing for details.

1

Upload your PDF

Open the Watermark PDF tool and upload the document you want to brand. Pro users can upload files up to 200MB and use batch processing for multiple files at once.

2

Upload your logo and configure

Select Image Watermark and upload your logo file. For the best result, use a PNG with a transparent background. Adjust the opacity (10-20% for subtle, 25-35% for prominent), scale the logo to about 30-50% of the page width, and choose center placement for a background watermark or a corner for a subtle stamp.

3

Apply and download

Click Apply Watermark. Your logo appears on every page of the PDF. Download the branded document and share it with clients, partners, or stakeholders.

Preparing Your Logo for Watermarking

The quality of your logo watermark depends heavily on the image file you upload. Here are some tips:

  • Use PNG with transparent background. This is the most important tip. A transparent PNG ensures only your logo shape appears on the page, without an ugly white or colored rectangle behind it.
  • Use high resolution. A minimum of 300 DPI or 1000px wide ensures your logo looks sharp when scaled up on the page. Low-resolution logos will appear blurry.
  • Use a single-color or simplified version. Complex multi-color logos can be distracting as watermarks. If you have a simplified or monochrome version of your logo, use that instead.
  • Test with a sample page first. Before watermarking a 50-page proposal, test your logo settings on a single page to make sure the size, opacity, and position look right.

Logo Placement Strategies

Where you place your logo watermark depends on the purpose. For more detailed guidance, check out our watermark best practices guide.

Center — Background Branding

Place the logo in the center of the page at low opacity (10-15%). This creates a subtle background brand presence without distracting from the content. Best for proposals, reports, and client deliverables.

Bottom Corner — Subtle Stamp

Place a small logo in the bottom-right or bottom-left corner at slightly higher opacity (20-30%). This works like a letterhead footer and is less intrusive. Good for invoices, contracts, and formal correspondence.

Diagonal — Maximum Visibility

Rotate the logo 45 degrees and stretch it across the page. This is the strongest branding approach and also works as a deterrent against unauthorized copying. Use it for portfolios, design work, and preview documents.

After Watermarking: Next Steps

Once your PDF is branded with your logo, consider these additional steps:

  • Flatten to make it permanent. Use Flatten PDF to merge the watermark into the page so it cannot be removed by someone editing the file.
  • Compress to reduce file size. Logo images add some weight to the PDF. Run it through Compress PDF to shrink it back down, especially if you plan to email it.
  • Protect with a password. For sensitive branded documents, add a password using Protect PDF to restrict editing and printing.
  • Merge multiple documents. If you have several branded PDFs that need to go together, use Merge PDF to combine them into a single polished package.

Brand Your PDFs with Your Logo

Upload your PDF and logo, adjust the opacity and position, and download your branded document in seconds. Available for Pro and Business users.

Watermark PDF Now

Frequently Asked Questions

How do I add my logo as a watermark on a PDF?

Upload your PDF to OmnisPDF's Watermark PDF tool, select Image Watermark, upload your logo file (PNG or JPG), adjust the size and opacity, then click Apply. Your logo will appear on every page.

What image format should my logo be in?

PNG with a transparent background works best. This ensures only your logo shows up on the page without a white rectangle around it. JPG logos will work but may have a visible background.

What size and opacity work best for a logo watermark?

For a subtle background watermark, use 10-20% opacity and scale the logo to about 30-50% of the page width. For a more visible stamp, increase opacity to 25-35%. Place it in the center for background branding or in a corner for a subtle mark.

Can I watermark multiple PDFs with my logo at once?

Yes. Pro and Business users can use batch processing to apply the same logo watermark to multiple PDFs simultaneously. Upload all your files, configure the watermark once, and apply to all.

Will adding a logo watermark increase my file size?

Slightly. The logo image is embedded on each page, which adds some file size. If the result is too large, use OmnisPDF's Compress PDF tool after watermarking to reduce the file size.

Is the Watermark PDF tool free?

Watermark PDF is available to Pro ($7.99/month) and Business ($13.99/month) users. Both tiers include unlimited watermarking, batch processing, and files up to 200MB.