--- title: "PDF.ai: search popularity worldwide" description: "PDF.ai is an AI PDF tool. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/brands/pdf-ai" publisher: "Brandwave" --- # PDF.ai: search popularity worldwide PDF.ai is an AI PDF tool. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Brand**: PDF.ai - **Market**: Global - **Measured month**: Sep 2026 - **Share of Search among AI PDF tools**: 0.05% ## Where the brand sits | Competitive set | Rank | Share of Search | Estimated monthly branded searches | | --- | --- | --- | --- | | AI PDF tools | 5 | 0.05% | 14.8K | - [AI PDF tools](/demand/global-en/categories/ai-pdf-tools) ## Top AI PDF tools in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, PDF.ai did not appear in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Adobe Acrobat | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | NotebookLM | 2nd | 3 of 3 | 0 of 2 | 3 of 5 | | ChatPDF | 3rd | 3 of 3 | 2 of 2 | 5 of 5 | | Humata | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | PDF.ai | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | AskYourPDF | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Documind | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about AI PDF tools - Asked ChatGPT "Which AI PDF tool should I use?": 1. NotebookLM, 2. Adobe Acrobat, 3. ChatPDF - Asked ChatGPT "What are the best AI PDF tools?": 1. NotebookLM, 2. Adobe Acrobat, 3. ChatPDF - Asked ChatGPT "What's the best AI PDF tool for PDF documents?": 1. Adobe Acrobat, 2. NotebookLM, 3. ChatPDF - Searched Google, AI Overview "ai pdf tool": 1. Adobe Acrobat, 2. ChatPDF - Searched Google, AI Overview "chat with pdf": 1. ChatPDF, 2. Adobe Acrobat Not named in any answer: Humata, PDF.ai, AskYourPDF and Documind. Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How has branded search demand for PDF.ai changed worldwide over the last 12 months? - Across the 12 months ending September 2026, estimated monthly branded searches for PDF.ai worldwide fell from 49.5K to 14.8K. - Across the 12 months ending September 2026, PDF.ai fell from 4th to 5th among AI PDF tools worldwide. ## How did search popularity change for AI PDF tools worldwide in September 2026? - In September 2026, NotebookLM gained share of searches among AI PDF tools worldwide, from 85.1% to 86.2%. - In September 2026, Adobe Acrobat lost share of searches among AI PDF tools worldwide, from 13.9% to 12.8%. - In September 2026, Humata rose from 5th to 4th among AI PDF tools worldwide. - In September 2026, PDF.ai fell from 4th to 5th among AI PDF tools worldwide. - Estimated monthly branded searches for AskYourPDF worldwide fell 80.4% over 12 measured months, from 14.8K to 2.9K in September 2026. - Estimated monthly branded searches for ChatPDF worldwide fell 70.1% over 12 measured months, from 823K to 246K in September 2026. ## Historical estimated branded-search demand | Month | Competitive set | Estimated monthly branded searches | Share of Search | Rank | | --- | --- | --- | --- | --- | | Oct 2025 | AI PDF tools | 49.5K | 0.28% | 4 | | Nov 2025 | AI PDF tools | 40.5K | 0.21% | 4 | | Dec 2025 | AI PDF tools | 33.1K | 0.16% | 4 | | Jan 2026 | AI PDF tools | 27.1K | 0.11% | 4 | | Feb 2026 | AI PDF tools | 27.1K | 0.11% | 4 | | Mar 2026 | AI PDF tools | 33.1K | 0.11% | 4 | | Apr 2026 | AI PDF tools | 33.1K | 0.1% | 4 | | May 2026 | AI PDF tools | 27.1K | 0.08% | 4 | | Jun 2026 | AI PDF tools | 22.2K | 0.08% | 4 | | Jul 2026 | AI PDF tools | 18.1K | 0.08% | 4 | | Aug 2026 | AI PDF tools | 14.8K | 0.06% | 4 | | Sep 2026 | AI PDF tools | 14.8K | 0.05% | 5 | ## How are PDF.ai’s branded searches counted? Brandwave collects information about searches that people make online using PDF.ai’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading. - “pdfai” ## Which AI PDF tools compete with PDF.ai? - [NotebookLM](/demand/global-en/brands/notebooklm) - [Adobe Acrobat](/demand/global-en/brands/adobe-acrobat): Head-to-head: /demand/global-en/compare/adobe-acrobat-vs-pdf-ai - [ChatPDF](/demand/global-en/brands/chatpdf): Head-to-head: /demand/global-en/compare/chatpdf-vs-pdf-ai - [Humata](/demand/global-en/brands/humata): Head-to-head: /demand/global-en/compare/humata-vs-pdf-ai - [AskYourPDF](/demand/global-en/brands/askyourpdf): Head-to-head: /demand/global-en/compare/askyourpdf-vs-pdf-ai - [Documind](/demand/global-en/brands/documind): Head-to-head: /demand/global-en/compare/documind-vs-pdf-ai ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Cite this page Brandwave. "PDF.ai: search popularity worldwide". https://gobrandwave.com/demand/global-en/brands/pdf-ai This page is also available as HTML at https://gobrandwave.com/demand/global-en/brands/pdf-ai. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.