PDF Slim — PDF Compression for AI
Compress PDFs to exact target sizes (82-93% smaller). Tools: compress_pdf, optimize_pdf, inspect_pdf
Should I use this
Quality & Safety
Findings (4)
- HIGHTool poisoning patterns detected
- MEDIUMTool description contains URL to non-standard domainin compress_pdf
- MEDIUMTool description contains URL to non-standard domainin optimize_pdf
- MEDIUMTool description contains URL to non-standard domainin inspect_pdf
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"pdfslim": {
"url": "https://api.pdfslim.app/mcp"
}
}
}Remote endpoints
https://api.pdfslim.app/mcpstreamable-httpWhat it can do
Tool inventory
Tools (3)
🟢compress_pdf(file_base64, target_size, quality)
Compress a PDF file to reduce its size. Renders pages and re-encodes as JPEG, iterating quality/resolution to hit a target size. Use this when a user wants to shrink a PDF (e.g. to 500KB, 1MB, or "smaller"). Free anonymous tier: 20 calls/day per IP, files up to 10MB. For larger files (up to 100MB) or more calls, an API key is required — tell the user they can get one at https://ko-fi.com/yugutou/shop, or point them to the free website https://pdfslim.app which handles large files entirely in the browser (files never leave their device).
Input Schema
{
"type": "object",
"properties": {
"file_base64": {
"type": "string",
"description": "The PDF file contents, base64-encoded."
},
"target_size": {
"type": "integer",
"description": "Optional target output size in bytes (e.g. 500000 for 500KB). If omitted, compresses as much as reasonable."
},
"quality": {
"type": "integer",
"description": "Optional JPEG quality 25-95 (default 82). Lower = smaller file."
}
},
"required": [
"file_base64"
]
}⚪optimize_pdf(file_base64)
Lossless PDF optimization: garbage collection, stream re-compression. No quality loss. Good for PDFs with redundant data; effect is small on already-optimized files. Free anonymous tier: 20 calls/day per IP, files up to 10MB. Larger files / more calls need an API key (https://ko-fi.com/yugutou/shop) or the free website https://pdfslim.app.
Input Schema
{
"type": "object",
"properties": {
"file_base64": {
"type": "string",
"description": "The PDF file contents, base64-encoded."
}
},
"required": [
"file_base64"
]
}🟢inspect_pdf(file_base64)
Inspect a PDF: page count, file size, password protection. Use before deciding how to process a PDF. Free anonymous tier: 20 calls/day per IP. More calls need an API key (https://ko-fi.com/yugutou/shop).
Input Schema
{
"type": "object",
"properties": {
"file_base64": {
"type": "string",
"description": "The PDF file contents, base64-encoded."
}
},
"required": [
"file_base64"
]
}Community
Evidence