ToolKnife vs iLovePDF
Honest comparison. No spin.
TL;DR
T
Use ToolKnife if you need PDF tools alongside calculators, image editors, developer tools, and an API/MCP.
i
Use iLovePDF if you only need PDF processing and want the most comprehensive, battle-tested PDF toolkit.
Bottom line: iLovePDF is cheaper for PDF-only needs ($4/mo). ToolKnife is better value if you also need calculators, image tools, invoices, and API access ($19/mo for everything).
Feature comparison
| Feature | ToolKnife | iLovePDF |
|---|---|---|
| PDF merge | Yes | Yes |
| PDF split | Yes | Yes |
| PDF rotate | Yes | Yes |
| PDF compress | Via pipeline | Yes (dedicated tool) |
| PDF to Word/Excel/PPT | No | Yes |
| OCR | No | Yes (Premium) |
| PDF sign | No | Yes |
| PDF form filler | Yes | Yes |
| Watermark | Yes | Yes |
| Page numbers | Yes (via pipeline) | Yes |
| PDF pipeline (chain operations) | Yes | No (tool-by-tool) |
| Non-PDF tools | 280+ (image, finance, CSS, dev...) | Image tools only |
| REST API | Yes | Yes (PDF-focused) |
| Processing | Client-side (privacy) | Server-side |
| Desktop app | No (web only) | Yes (Windows/Mac) |
Pricing
ToolKnife
Free (all tools) / Pro $19/mo / Business $79/mo
iLovePDF
Free (limited) / Premium $4/mo / Business $7/mo
Which should you choose?
Choose ToolKnife if...
- You need PDF tools plus calculators, image editors, or developer utilities
- Privacy matters: ToolKnife processes PDFs client-side (files never leave your browser)
- You want one subscription covering all your online tool needs
- You need a REST API and MCP server for AI agent integrations
- You want a PDF pipeline that chains multiple operations in one step
Choose iLovePDF if...
- PDF processing is your primary need and you want the most comprehensive PDF toolkit
- You need PDF to Word/Excel conversion, OCR, or e-signatures
- You want the cheapest option for PDF-only work ($4/mo vs $19/mo)
- You need a desktop application for offline PDF processing
Frequently asked questions
Does ToolKnife process PDFs on the server?
No. All PDF operations in ToolKnife run client-side in your browser using pdf-lib. Your files never leave your device. iLovePDF processes files on their servers, which is faster for large files but means your documents are uploaded to a third party.
Can ToolKnife convert PDF to Word?
Not currently. iLovePDF offers PDF to Word, Excel, and PowerPoint conversion, plus OCR. ToolKnife focuses on PDF manipulation (merge, split, rotate, watermark, form filling) and conversion to/from images.
Why is iLovePDF so much cheaper?
iLovePDF's $4/mo plan covers only PDF tools. ToolKnife's $19/mo includes 290+ tools across 19 categories plus 5,000 API calls/day and MCP access. If you only need PDF tools, iLovePDF is the better deal.
What is a PDF pipeline?
ToolKnife's PDF pipeline lets you chain operations: upload a PDF, then merge + rotate + add watermark + add page numbers in a single workflow. iLovePDF requires using each tool separately.
Related tools
Try ToolKnife free
290+ tools, REST API, MCP server. No signup required for the website. API and tracking need a free account.