PDF24 vs Sejda

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

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PDF24 and Sejda run close here. PDF24 scores 15 overall (19 on ChatGPT, 15 on Claude) and shows up in 19 of 57 answers, while Sejda edges ahead overall at 14... actually scores 14 overall (16 ChatGPT, 19 Claude), appearing in 23 of 57 answers. Head-to-head, Sejda is named more often in 8 questions, PDF24 in 7, with 10 ties. Both are named in all 4 answers for "best free PDF editor," and both share two of the same "never named" questions: extracting tables and OCR for scanned PDFs. Sejda also covers form-filling and merging/splitting, areas where PDF24 is never named.

Head to head

metric	PDF24	Sejda
score	15	14
questions won	13	13

By assistant

PDF24

assistant	score	named in, this week	usual spot, this week
ChatGPT	19	25% of answers	#3.6
Claude	15	30% of answers	#5.8
Gemini	not sampled this week
Perplexity	not sampled this week

Sejda

assistant	score	named in, this week	usual spot, this week
ChatGPT	16	25% of answers	#3.0
Claude	19	50% of answers	#8.7
Gemini	not sampled this week
Perplexity	not sampled this week

Where they differ

Only PDF24 gets named for

Which PDF tool is best for privacy and sensitive documents?
What's the best tool to redact or remove sensitive text from a PDF?
What's the best tool to compress a large PDF?
What are the best alternatives to PDF-XChange Editor?
What's the best tool to convert a PDF to Word or Excel?
Which PDF editor is best value for a small business?

Only Sejda gets named for

What's the best tool to merge, split and reorder PDF pages?
What's the best tool to fill in and sign a PDF form?
What are the best alternatives to Adobe Acrobat?
What are the best alternatives to Foxit?
What's the best PDF editor for Mac?
What's the best alternative to Adobe Acrobat?

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