Brandwave

PDF Expert vs pdfFiller:Which is more popular?

In September 2026, pdfFiller had more branded searches than PDF Expert among PDF editors worldwide. pdfFiller had about 93,200 branded searches, while PDF Expert had 27,100. pdfFiller made up 0.13% of all PDF editor searches we track, and PDF Expert accounted for 0.04%. When we asked ChatGPT and Google AI Overviews about PDF editors, PDF Expert appeared in three of the five answers and pdfFiller in two. PDF Expert was mentioned before pdfFiller in three out of five answers.

Among PDF editors worldwide in September 2026

Who do people search for more?

pdfFiller, about 3 searches for every 1 for PDF Expert

pdfFiller 93.2K searchesPDF Expert 27.1K searches

Who does AI mention more?

PDF Expert, mentioned in 3 of 5 answers, pdfFiller in 2

PDF Expert in 3 of 5pdfFiller in 2 of 5

Who does AI recommend more?

PDF Expert, named ahead of pdfFiller in 3 of 5 answers

PDF Expert first in 3pdfFiller first in 2

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Top PDF editors in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, PDF Expert was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. pdfFiller was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. PDF Expert was listed before pdfFiller in three out of five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Adobe Acrobat1st
  2. PDFgear2nd
  3. Foxit3rd
  4. PDF Expert4th
  5. pdfFiller5th
  6. PDF-XChange6th
  7. PDFescape7th
  8. iLovePDF–
  9. Sejda–
  10. Smallpdf–
  11. +3 more

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
  • PDFgear5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Foxit4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • PDF Expert3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • PDF-XChange2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • pdfFiller2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • PDFescape1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • iLovePDF0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Sejda0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Smallpdf0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+3 more

See every answer about PDF editors

5 answers

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 19, 2026.

Is PDF Expert or pdfFiller more popular in search?

This chart shows how often people search Google for PDF Expert and pdfFiller by name. Each line represents a brand's share of searches for all 13 PDF editors we track, month by month, from English-language searches worldwide.

PDF Expert and pdfFiller among PDF editors worldwide, by month

Share of searches by month for pdfFiller, PDF Expert. The figures are in the table below the chart.

View monthly share of searches table
MonthiLovePDFAdobe AcrobatSejdaSmallpdfPDF24FoxitPDFgearPDF-XChangePDFescapeNitropdfFillerXodoPDF Expert
Oct 202582.4%7.3%3.3%2.8%1.5%0.88%0.37%0.45%0.45%0.19%0.22%0.11%0.06%
Nov 202583.7%6.2%3.4%2.8%1.5%0.78%0.3%0.41%0.37%0.2%0.17%0.11%0.06%
Dec 202583.4%5.9%3.7%3.1%1.4%0.83%0.4%0.4%0.33%0.18%0.19%0.12%0.05%
Jan 202682.1%6.8%3.6%3%1.6%0.83%0.49%0.49%0.4%0.21%0.23%0.12%0.07%
Feb 202681.7%7.5%3.6%3.1%1.6%0.83%0.4%0.39%0.32%0.18%0.19%0.1%0.05%
Mar 202683.4%6.4%3.4%2.8%1.5%0.78%0.45%0.45%0.3%0.17%0.22%0.09%0.06%
Apr 202684%5.8%3.4%2.8%1.5%0.78%0.46%0.42%0.31%0.17%0.17%0.09%0.05%
May 202684%6.1%3.4%2.8%1.5%0.7%0.37%0.37%0.31%0.17%0.15%0.09%0.05%
Jun 202685.4%5.3%3.1%2.9%1.4%0.61%0.34%0.34%0.23%0.16%0.16%0.07%0.04%
Jul 202684.4%5.8%3.4%2.6%1.5%0.69%0.46%0.37%0.25%0.21%0.14%0.08%0.04%
Aug 202685.5%5%3.5%2.4%1.5%0.68%0.38%0.35%0.25%0.18%0.14%0.08%0.04%
Sep 202686.1%5%3.1%2.1%1.7%0.63%0.34%0.34%0.23%0.16%0.13%0.07%0.04%

How has the PDF Expert and pdfFiller comparison changed over the last 12 months?

3 findings
  • pdfFiller was ahead of PDF Expert in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, PDF Expert’s share of searches among PDF editors worldwide moved from 0.06% to 0.04%, and its estimated monthly branded searches moved from 40.5K to 27.1K.
  • Across the 12 months ending September 2026, pdfFiller’s share of searches among PDF editors worldwide moved from 0.22% to 0.13%, and its estimated monthly branded searches moved from 148K to 93.2K.

How did search popularity change for PDF editors worldwide in September 2026?

2 changes

  1. Estimated monthly branded searches for pdfFiller worldwide fell 37% over 12 measured months, from 148K to 93.2K in September 2026.

  2. Estimated monthly branded searches for PDF Expert worldwide fell 33.1% over 12 measured months, from 40.5K to 27.1K in September 2026.

How are branded searches counted?

10 search terms

Brandwave collects information about searches that people make online using PDF Expert’s and pdfFiller’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.

PDF Expert

1 branded search term

  • pdf expert

pdfFiller

9 branded search terms

  • pdf editor pdffiller
  • pdf pdffiller
  • pdffiller
  • pdffiller app
  • pdffiller com
  • pdffiller online
  • pdffiller pdf
  • pdffiller pdf editor
  • pdffiller software

How the Brand Demand Index is measured

Other head-to-heads among PDF editors

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