Preview vs Smallpdf

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

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Preview edges out Smallpdf overall, scoring 22 versus 16, with a stronger showing on Claude (38 to 21) while both trail on ChatGPT and Perplexity. Preview shows up in 33 of 83 answers, slightly ahead of Smallpdf's 26 of 83, and leans hardest on Mac-specific and privacy questions, named in 4 of 4 and 3 of 4 answers respectively. Smallpdf, by contrast, does best on browser-based and Adobe Acrobat alternative questions, including 3 of 3 answers for "best PDF editors in 2026." Head-to-head, the two are evenly matched: each leads in 7 questions, with 11 ties between them.

Head to head

metric	Preview	Smallpdf
score	23	18
questions won	14	14

By assistant

Preview

assistant	score	named in, this week	usual spot, this week
ChatGPT	15	20% of answers	#5.8
Claude	37	45% of answers	#4.4
Gemini	not sampled this week
Perplexity	not sampled this week

Smallpdf

assistant	score	named in, this week	usual spot, this week
ChatGPT	14	20% of answers	#4.0
Claude	24	60% of answers	#7.8
Gemini	not sampled this week
Perplexity	not sampled this week

Where they differ

Only Preview gets named for

What's the best free PDF editor?
What's the best tool to edit a PDF without a subscription?
Which PDF editor is best value for a small business?
What are the best alternatives to PDF-XChange Editor?
What are the best alternatives to PDFgear?

Only Smallpdf gets named for

What's the best online PDF editor that works in the browser?
What's the best tool to convert a PDF to Word or Excel?
What's the best tool to compress a large PDF?
What's the best PDF editor app for iPhone or Android?
What's the best PDF editor for Windows?

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