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Upload the PDF you want to watermark to EditDocs AI.
Type your watermark text (e.g. "CONFIDENTIAL") or upload a logo PNG. Set opacity, position, and rotation angle.
Your permanently watermarked PDF is ready to download. Auto-deleted from servers after 60 minutes.
More features than any basic PDF tool — and always free
Common real-world scenarios
Free forever · No account · No watermark · Files deleted in 60 minutes
Start Free →Everything you need to know about watermark pdf
Yes. Upload a PNG (with transparent background) and it will be used as a full image watermark.
Yes. Set opacity anywhere from 5% (barely visible) to 100% (fully opaque).
Yes. The watermark is embedded as part of the PDF content and cannot be removed without re-processing.
Yes. Specify pages like "add watermark to pages 1, 5-10" in the studio.
Go to editdocsai.com/tools/watermark-pdf, upload your PDF, type your watermark text or upload an image, and download. Free, no account needed.
Set opacity to 20–40% for a subtle "DRAFT" or "CONFIDENTIAL" watermark, or 70–100% for a prominent logo watermark.
Yes. Set the rotation to 45° and choose "center" position for the classic diagonal watermark look.
Yes. In AI Studio, type "add watermark to pages 1, 3-5" and only those pages will be watermarked.
| EditDocs AI | Basic PDF Tools | Premium Software | |
|---|---|---|---|
| Watermark PDF | Free | Free* | Paid only |
| Files deleted after | 60 minutes | 24+ hours | Stored indefinitely |
| AI natural language | |||
| Batch processing | Unlimited | Paid | Paid |
| Account required | No | No | Always |
| API access | Free tier | Paid | Enterprise |
| Workflow automation |
* Basic tools have limits on free usage. EditDocs AI core features are always free.
Text watermark: go to editdocsai.com/tools/watermark-pdf, upload your PDF, type your watermark text (e.g. "CONFIDENTIAL", "DRAFT", "DO NOT COPY"), set opacity (30–50% for subtle, 70%+ for visible), choose position (center, top, bottom, diagonal), and download. Image watermark: upload your logo or signature image instead of typing text — PNG with transparent background works best for logos. Both methods are free, instant, and require no account.
To watermark a large number of documents: go to editdocsai.com/batch, select Add Watermark as the operation, configure your watermark text and settings, upload all your PDFs, and download a ZIP of all watermarked files. This is the fastest way to brand an entire document library or add "CONFIDENTIAL" to hundreds of reports before sending them externally. All files process in parallel — processing time does not scale with file count.
Go to editdocsai.com/studio, upload the PDF, and type "remove watermark". Our AI detects and removes text watermarks and logo overlays. Note: watermarks baked directly into the original page content (not added as a PDF layer) are significantly harder to remove cleanly — they may require manual editing if the underlying content is obscured. Watermarks added as a separate overlay layer (as EditDocs AI and most tools add them) can always be removed cleanly.