PDFgear vs Stirling PDF

as AI assistants see them, week of 2026-10-26

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PDFgear edges out Stirling PDF overall, with a score of 28 versus 16, and a few more mentions across the board — 22 of 57 answers compared to 19 of 57. PDFgear shows up every time for "best PDF editor for Windows" (3 of 3) and leans on general editor and Acrobat-alternative questions. Stirling PDF, meanwhile, owns the privacy angle, named in all 3 answers on privacy and sensitive documents, plus both answers on open-source or self-hosted tools — a question where PDFgear never appears. Head-to-head, PDFgear leads in 10 questions, Stirling PDF in 6, and they tie in 9.

Head to head

metric	PDFgear	Stirling PDF
score	28	16
questions won	14	16

By assistant

PDFgear

assistant	score	named in, this week	usual spot, this week
ChatGPT	40	45% of answers	#2.8
Claude	13	20% of answers	#6.0
Gemini	not sampled this week
Perplexity	not sampled this week

Stirling PDF

assistant	score	named in, this week	usual spot, this week
ChatGPT	6	10% of answers	#2.0
Claude	31	60% of answers	#6.2
Gemini	not sampled this week
Perplexity	not sampled this week

Where they differ

Only PDFgear gets named for

What's the best PDF editor app for iPhone or Android?
What's the best tool to compress a large PDF?
What are the best alternatives to Preview?
What's the best PDF editor for Mac?

Only Stirling PDF gets named for

Which PDF tool is best for privacy and sensitive documents?
What's the best open-source or self-hosted PDF tool?
What are the best alternatives to PDFgear?
What's the best OCR tool to make a scanned PDF searchable?
What's the best tool to merge, split and reorder PDF pages?
What's the best online PDF editor that works in the browser?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full PDF editors leaderboard