pdfFiller vs PDFsam Basic

as AI assistants see them, week of 2026-09-21

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pdfFiller and PDFsam Basic both sit low in AI recommendations, with overall scores of 4 and 6 out of 100. pdfFiller shows up in just 3 of 68 answers, picking up single mentions for browser-based editing, form filling and signing, and mobile editing, but it's never named for redaction, summarising, OCR, merging/splitting, or open-source tools. PDFsam Basic appears a bit more often, in 7 of 68 answers, and stands out for merging, splitting and reordering pages, where it's named in all 4 relevant answers. Head-to-head, PDFsam Basic edges ahead in 4 questions, pdfFiller in 3, with 13 ties.

Head to head

metric	pdfFiller	PDFsam Basic
score	4	6
questions won	3	4

By assistant

pdfFiller

assistant	score	named in, this week	usual spot, this week
ChatGPT	0	0% of answers
Claude	0	0% of answers
Gemini	not sampled this week
Perplexity	11	15% of answers	#3.3

PDFsam Basic

assistant	score	named in, this week	usual spot, this week
ChatGPT	5	5% of answers	#1.0
Claude	11	20% of answers	#6.8
Gemini	not sampled this week
Perplexity	5	5% of answers	#1.0

Where they differ

Only pdfFiller gets named for

What's the best PDF editor app for iPhone or Android?
What's the best tool to fill in and sign a PDF form?
What's the best online PDF editor that works in the browser?

Only PDFsam Basic gets named for

What's the best tool to merge, split and reorder PDF pages?
Which PDF tool is best for privacy and sensitive documents?
What's the best free PDF editor?
What are the best PDF editors?

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