ChatPDF vs Documind:Which is more popular?
In September 2026, ChatPDF had more branded searches than Documind among AI PDF tools worldwide. ChatPDF had about 246,000 branded searches, while Documind had 720. ChatPDF made up 0.87% of all AI PDF tool searches we track, and Documind accounted for <0.01%. When we asked ChatGPT and Google AI Overviews about AI PDF tools, ChatPDF appeared in all five answers and Documind in none.
Who do people search for more?
ChatPDF, about 342 searches for every 1 for Documind
Who does AI mention more?
ChatPDF, mentioned in every answer we collected
Who does AI recommend more?
ChatPDF, the only one of the two named
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Top AI PDF tools in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, ChatPDF appeared in all five answers. Documind did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Adobe Acrobat5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers- ChatPDF5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
NotebookLM3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Humata0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
PDF.ai0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
AskYourPDF0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Documind0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about AI PDF tools
5 answers
Asked ChatGPT
“Which AI PDF tool should I use?”
Asked ChatGPT
“What are the best AI PDF tools?”
Asked ChatGPT
“What's the best AI PDF tool for PDF documents?”
Searched Google, AI Overview
“ai pdf tool”
Searched Google, AI Overview
“chat with pdf”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is ChatPDF or Documind more popular in search?
This chart shows how often people search Google for ChatPDF and Documind by name. Each line represents a brand's share of searches for all seven AI PDF tools we track, month by month, from English-language searches worldwide.
Share of searches by month for ChatPDF, Documind. The figures are in the table below the chart.
View monthly share of searches table
| Month | NotebookLM | Adobe Acrobat | ChatPDF | Humata | PDF.ai | AskYourPDF | Documind |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 67.1% | 27.6% | 4.7% | 0.23% | 0.28% | 0.08% | <0.01% |
| Nov 2025 | 73.4% | 21.7% | 4.4% | 0.18% | 0.21% | 0.08% | <0.01% |
| Dec 2025 | 79.8% | 17.7% | 2.2% | 0.11% | 0.16% | 0.05% | <0.01% |
| Jan 2026 | 81.1% | 17.2% | 1.5% | 0.07% | 0.11% | 0.04% | <0.01% |
| Feb 2026 | 79.6% | 18.7% | 1.5% | 0.09% | 0.11% | 0.03% | <0.01% |
| Mar 2026 | 83.8% | 14.4% | 1.5% | 0.08% | 0.11% | 0.03% | <0.01% |
| Apr 2026 | 87% | 11.2% | 1.6% | 0.08% | 0.1% | 0.03% | <0.01% |
| May 2026 | 86.9% | 11.6% | 1.3% | 0.05% | 0.08% | 0.02% | <0.01% |
| Jun 2026 | 85.3% | 13.5% | 1% | 0.05% | 0.08% | 0.02% | <0.01% |
| Jul 2026 | 82.7% | 16.3% | 0.86% | 0.04% | 0.08% | 0.02% | <0.01% |
| Aug 2026 | 85.1% | 13.9% | 0.86% | 0.05% | 0.06% | 0.01% | <0.01% |
| Sep 2026 | 86.2% | 12.8% | 0.87% | 0.05% | 0.05% | 0.01% | <0.01% |
How has the ChatPDF and Documind comparison changed over the last 12 months?
3 findings
- ChatPDF was ahead of Documind in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, ChatPDF’s share of searches among AI PDF tools worldwide moved from 4.7% to 0.87%, and its estimated monthly branded searches moved from 823K to 246K.
- Across the 12 months ending September 2026, Documind’s share of searches among AI PDF tools worldwide held steady at <0.01%, and its estimated monthly branded searches moved from 1K to 720.
How did search popularity change for AI PDF tools worldwide in September 2026?
2 changes
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using ChatPDF’s and Documind’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Other head-to-heads among AI PDF tools
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