A high-precision document enhancement tool that intelligently erases watermarks and stamps from PDF files while maintaining the original layout and text.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install camscanner-pdf-remove-watermark
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install camscanner-pdf-remove-watermark using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is CamScanner PDF Remove Watermark?
The CamScanner PDF Remove Watermark skill provides developers and users with a professional-grade document enhancement engine. It is designed to intelligently detect and erase overlaid watermarks, stamps, and translucent logos across every page of a document. Unlike basic editors, this tool preserves the underlying text and original layout, ensuring the resulting file is clean, legible, and ready for professional use.
By integrating this tool into your collection of Openclaw Skills, you gain the ability to automate the cleaning of restricted or branded documents. It handles complex PDF structures by offering a robust three-step pipeline: upload, process, and download, or a streamlined two-step raw streaming workflow for immediate file recovery.
CamScanner PDF Remove Watermark Use Cases
- Removing watermarks, stamps, or translucent logos from official documents before sharing.
- Cleaning up watermarked PDFs to ensure high-quality, professional printing.
- Preparing documents for OCR (Optical Character Recognition) by removing obstructive visual elements.
- Recovering clean copies of archived PDFs where the original unwatermarked version is unavailable.
How CamScanner PDF Remove Watermark Works
- The user uploads the source PDF to the CamScanner server, which returns a unique file identifier.
- The remove_watermark_pdf operation is triggered, allowing for specific configurations like rendering DPI and timeout limits.
- The engine scans the document to isolate watermark layers while protecting the original content.
- Depending on the output mode, the system either generates a new file ID for later retrieval or streams the processed PDF bytes directly back to the local environment.
CamScanner PDF Remove Watermark Setup
To use this skill, ensure your environment has the necessary binaries installed to handle network requests and JSON parsing.
# Ensure curl and jq are installed
sudo apt-get update && sudo apt-get install curl jq
You can then initiate the workflow by uploading your file to the base URL https://ai-tools.camscanner.com using a POST request with the binary data.
CamScanner PDF Remove Watermark Data Schema & Taxonomy
The skill manages document data through temporary identifiers and configurable parameters to ensure high-quality output.
| Parameter | Type | Description |
|---|---|---|
| file_id | String | The session-specific ID generated during the upload phase. |
| dpi | Integer | The rendering resolution for processing (recommended value: 144). |
| timeout_sec | Integer | Maximum processing time allowed, essential for large multi-page PDFs. |
| output_mode | String | Determines if the response is a file reference or raw binary data. |
CamScanner PDF Remove Watermark Advanced Features
- Multi-mode output support allowing for either persistent file IDs or one-shot raw binary streaming.
- Intelligent detection engine capable of identifying translucent logos across varying document backgrounds.
- Configurable rendering DPI to balance processing speed with visual precision.
- Seamless integration capabilities with other Openclaw Skills for automated document post-processing.
SKILL.md
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