PDFtk

How often 10 AI models put PDFtk in their top ten, what they say about it, and which competitors they list, on the 1 buying question where it came up.

Mention rate

6%of all answers on this question

Best standing

#19of 36 on Best Python libraries for reading and filling PDF files

Buying questions

1where any model named it

Outside every top ten

7of 10 models; counts below

Which models list it in their top ten

Share of each model's answers that put it in the top ten · The black tick marks the panel average

1. Claude Haiku 5.538%
2. Kimi K313%
3. MiniMax M313%
4. GPT-6 Luna0%
5. Gemini 4 Argon0%
6. Qwen 3.8 Flash0%
7. DeepSeek V4.1 Flash0%
8. GLM-5.30%
9. Mistral Large 40%
10. Nemotron 3.5 Super VL0%

Never put it in their top ten: GPT-6 Luna (0 of 8 answers); Gemini 4 Argon (0 of 8 answers); Qwen 3.8 Flash (0 of 8 answers); DeepSeek V4.1 Flash (0 of 8 answers); GLM-5.3 (0 of 8 answers); Mistral Large 4 (0 of 8 answers); Nemotron 3.5 Super VL (0 of 8 answers). These counts describe the recorded lists, not everything a model knows or would recommend.

What the models say

Each model's one-line reason for recommending it, from its first answer

Best Python libraries for reading and filling PDF files 1

• Claude Haiku 5.5Wraps the PDFtk command-line tool for form filling; depends on an external binary.

Against the competition

Each question's products ranked by the share of all answers that named them, PDFtk highlighted.

Best Python libraries for reading and filling PDF files

36 products named in 80 answers across 4 wordings

In nearly every answer

PyMuPDFReportLabpdfplumber

Contested

1. 4pypdf88%
2. 5borb75%
3. 6pikepdf74%
4. 7pdfrw73%
5. 8PyPDF254%
6. ⋯
7. 19PDFtk6%

Mention rate by model and question

Share of each model's answers on the question that named it · Hover a cell for the count

Question	Claude Haiku 5.5	GPT-6 Luna	Gemini 4 Argon	Qwen 3.8 Flash	DeepSeek V4.1 Flash	GLM-5.3	Kimi K3	MiniMax M3	Mistral Large 4	Nemotron 3.5 Super VL
Best Python libraries for reading and filling PDF files	38						13	13

Does the wording matter?

Share of answers that named it under each way of asking the question · Hover a cell for the exact wording

Question	List request	Buyer asking for advice	Search query	Worth paying for?
Best Python libraries for reading and filling PDF files		10	15

Head to head

Against the products named most often on the same questions

PDFtk vs PyMuPDFPDFtk vs ReportLabPDFtk vs pdfplumberPDFtk vs pypdfPDFtk vs borbPDFtk vs pikepdf

Compare with another product

Work on PDFtk? Get it tracked every month on the questions your buyers ask, or email sales@modelocracy.com.