Sejda vs Smallpdf
as AI assistants see them, week of 2026-09-21
Sejda and Smallpdf land close together overall, with scores of 16 and 18 out of 100. Sejda gets named in 19 of 68 answers, Smallpdf in 21 of 68. Sejda shows up every time for "best online PDF editor that works in the browser" (4 of 4) and "best free PDF editor" (3 of 3), while Smallpdf sweeps "best tool to compress a large PDF" (4 of 4). Head-to-head, Smallpdf edges ahead on 5 questions, Sejda on 4, and they tie on 11. Both are never named for OCR, open-source, or Windows-specific questions.
Head to head
| metric | Sejda | Smallpdf |
|---|---|---|
| score | 16 | 18 |
| questions won | 10 | 12 |
By assistant
Sejda
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 15 | 20% of answers | #3.0 |
| Claude | 22 | 45% of answers | #7.9 |
| Gemini | not sampled this week | ||
| Perplexity | 13 | 20% of answers | #4.5 |
Smallpdf
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 8 | 10% of answers | #2.5 |
| Claude | 21 | 45% of answers | #8.6 |
| Gemini | not sampled this week | ||
| Perplexity | 27 | 40% of answers | #4.1 |
Where they differ
Only Sejda gets named for
- What's the best tool to edit a PDF without a subscription?
- Which PDF tool is best for privacy and sensitive documents?
Only Smallpdf gets named for
- What's the best tool to compress a large PDF?
- What's the best tool to convert a PDF to Word or Excel?
- What's the best tool to redact or remove sensitive text from a PDF?
- What's the best PDF editor app for iPhone or Android?
More comparisons
- Preview vs Sejda
- Sejda vs Stirling PDF
- PDF Expert vs Sejda
- PDF-XChange Editor vs Sejda
- Preview vs Smallpdf
- Smallpdf vs Stirling PDF
Not sold on either?
Scores count how often each assistant names a product, weighted by position. How the score works · Full PDF editors leaderboard