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pdf-watermark-remover

pdf-watermark-remover is a skill for Claude Code, Codex from yuanqi99/manus-skills. It costs 53 tokens per session (462 once invoked), scanned B, original, MIT.

A tool for removing repeated patterned watermarks and semi-transparent text watermarks from PDF files.

In plain words
What is it for?
It is for processing a PDF, choosing automatic or targeted watermark removal, and checking the resulting pages.
Why use it?
It helps produce a cleaner copy when watermarks obscure document content or appearance.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 18repo 9mo ago B scan 53 tokens original MIT

Good fit It is for processing a PDF, choosing automatic or targeted watermark removal, and checking the resulting pages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yuanqi99/manus-skills/pdf-watermark-remover
View source ↗ yuanqi99/manus-skills
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add yuanqi99/manus-skills --skill pdf-watermark-remover
Clone the repo
git clone --depth 1 https://github.com/yuanqi99/manus-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for pdf-watermark-remover

README.md
[![agentmods](https://agentmods.dev/badge/skills/yuanqi99/manus-skills/pdf-watermark-remover/github.svg)](https://agentmods.dev/skills/yuanqi99/manus-skills/pdf-watermark-remover)
Your own site
<a href="https://agentmods.dev/skills/yuanqi99/manus-skills/pdf-watermark-remover"><img src="https://agentmods.dev/badge/skills/yuanqi99/manus-skills/pdf-watermark-remover/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for pdf-watermark-remover

Your own site · 80×15
<a href="https://agentmods.dev/skills/yuanqi99/manus-skills/pdf-watermark-remover"><img src="https://agentmods.dev/badge/skills/yuanqi99/manus-skills/pdf-watermark-remover.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 462 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00053 $0.00462
Opus 5.5 $0.00021 $0.00185
Sonnet 5.5 $0.00011 $0.00092
Haiku 4.5 $0.00005 $0.00046

Measured 2mo ago against content hash 85d7edc179a1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

pdf-watermark-remover scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

The scan reads SKILL.md. This mod also ships 4 executable files (pdf_watermark_remover/__init__.py, pdf_watermark_remover/cli.py, pdf_watermark_remover/remover.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo pip3 install pymupdf
pdf-watermark-remover/SKILL.md · 59 lines

What it actually says

PDF Watermark Remover

Remove watermarks from PDF files using PyMuPDF. Supports tiling pattern watermarks (most common in enterprise document systems) and semi-transparent text overlays.

Prerequisites

Ensure PyMuPDF is installed:

sudo pip3 install pymupdf

Usage

Run the bundled script:

python3 pdf_watermark_remover/cli.py <input.pdf> <output.pdf> [--mode auto|pattern|text|both]

Or if installed via pip:

pdf-watermark-remover <input.pdf> <output.pdf> [--mode auto|pattern|text|both]

Modes

Mode Description
auto Detect watermark type automatically and remove (default)
pattern Remove only tiling pattern watermarks (repeated tiles covering pages)
text Remove only semi-transparent text watermarks
both Force remove both types

Typical Workflow

  1. Receive PDF file from user
  2. Run script with --mode auto (default)
  3. Verify output by viewing 2-3 pages of the result PDF
  4. If watermarks remain, retry with --mode both or investigate manually
  5. Deliver the cleaned PDF to the user

How It Works

  • Pattern watermarks: Detected by /Pattern CS operators in content streams. Removed by excising q...Q graphics state blocks containing pattern fill operations.
  • Text watermarks: Detected by ExtGState objects with fill opacity (/ca) less than 1.0.

Limitations

  • Cannot remove watermarks baked into rasterized images (scanned PDFs)
  • Cannot remove watermarks embedded as part of the actual page content (same opacity as normal text)
  • For encrypted/password-protected PDFs, decryption must be done first
Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 59 lines · 53 tokens per session scan B 85d7edc179a1

Subscribe to this mod's changes

pdf-watermark-remover is a skill published in the GitHub repository yuanqi99/manus-skills (18 stars, last pushed 9mo ago), licensed MIT. It adds 53 tokens to every session and 462 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude CodeDocumentsPDFai-agentcli-toolscursormanus
Related

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