---
title: "ChatPDF vs PDF.ai: Which is searched more?"
description: "Is ChatPDF or PDF.ai more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI PDF tools set worldwide. 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/compare/chatpdf-vs-pdf-ai"
publisher: "Brandwave"
---

# ChatPDF vs PDF.ai: Which is searched more?

Is ChatPDF or PDF.ai more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the AI PDF tools set worldwide. 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

- **Compared**: ChatPDF and PDF.ai
- **Competitive set**: AI PDF tools
- **Market**: Global
- **Month measured**: Sep 2026
- **ChatPDF Share of Search**: 0.87%
- **PDF.ai Share of Search**: 0.05%

## Is ChatPDF or PDF.ai more popular in search?

- In September 2026, ChatPDF had more branded searches than PDF.ai among AI PDF tools worldwide. ChatPDF had about 246,000 branded searches, while PDF.ai had 14,800. ChatPDF made up 0.87% of all AI PDF tool searches we track, and PDF.ai accounted for 0.05%.
- ChatPDF was ahead of PDF.ai 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, PDF.ai’s share of searches among AI PDF tools worldwide moved from 0.28% to 0.05%, and its estimated monthly branded searches moved from 49.5K to 14.8K.

## How did search popularity change for AI PDF tools worldwide in September 2026?

- In September 2026, PDF.ai fell from 4th to 5th among AI PDF tools worldwide.
- Estimated monthly branded searches for ChatPDF worldwide fell 70.1% over 12 measured months, from 823K to 246K in September 2026.

## Month by month

| Month | ChatPDF estimated searches | ChatPDF Share of Search | ChatPDF rank | PDF.ai estimated searches | PDF.ai Share of Search | PDF.ai rank |
| --- | --- | --- | --- | --- | --- | --- |
| Oct 2025 | 823K | 4.7% | 3 | 49.5K | 0.28% | 4 |
| Nov 2025 | 823K | 4.4% | 3 | 40.5K | 0.21% | 4 |
| Dec 2025 | 450K | 2.2% | 3 | 33.1K | 0.16% | 4 |
| Jan 2026 | 368K | 1.5% | 3 | 27.1K | 0.11% | 4 |
| Feb 2026 | 368K | 1.5% | 3 | 27.1K | 0.11% | 4 |
| Mar 2026 | 450K | 1.5% | 3 | 33.1K | 0.11% | 4 |
| Apr 2026 | 550K | 1.6% | 3 | 33.1K | 0.1% | 4 |
| May 2026 | 450K | 1.3% | 3 | 27.1K | 0.08% | 4 |
| Jun 2026 | 301K | 1% | 3 | 22.2K | 0.08% | 4 |
| Jul 2026 | 201K | 0.86% | 3 | 18.1K | 0.08% | 4 |
| Aug 2026 | 201K | 0.86% | 3 | 14.8K | 0.06% | 4 |
| Sep 2026 | 246K | 0.87% | 3 | 14.8K | 0.05% | 5 |

## How each brand is measured

Brandwave collects information about searches that people make online using ChatPDF’s and PDF.ai’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.

- **ChatPDF**: Measured on the search term “chatpdf”.
- **PDF.ai**: Measured on the search term “pdfai”.

- [ChatPDF profile](/demand/global-en/brands/chatpdf)
- [PDF.ai profile](/demand/global-en/brands/pdf-ai)
- [All AI PDF tools worldwide](/demand/global-en/categories/ai-pdf-tools): The set both shares are measured inside, 7 brands.

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Is ChatPDF or PDF.ai more popular in search?

In September 2026, ChatPDF had more branded searches than PDF.ai among AI PDF tools worldwide. ChatPDF had about 246,000 branded searches, while PDF.ai had 14,800. ChatPDF made up 0.87% of all AI PDF tool searches we track, and PDF.ai accounted for 0.05%.

## Cite this page

Brandwave. "ChatPDF vs PDF.ai: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/chatpdf-vs-pdf-ai

This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/chatpdf-vs-pdf-ai. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.