Preview vs Sejda
as AI assistants see them, week of 2026-09-21
Preview edges out Sejda overall, scoring 17 versus 16 and landing in 21 of 68 answers compared to Sejda's 19. Preview sweeps the Mac editor question, named in all 3 of 3 answers, while Sejda sweeps the browser-based editor question, named in 4 of 4, plus a clean 3 of 3 for both free PDF editors and no-subscription editing. Head-to-head, Preview leads on 5 questions, Sejda on 4, and they tie on 11. By assistant, Claude rates Preview highest at 35, while ChatGPT favors Sejda, 15 to Preview's 4. Neither tool appears for redaction, OCR, open-source, or Windows editing questions.
Head to head
| metric | Preview | Sejda |
|---|---|---|
| score | 17 | 16 |
| questions won | 12 | 10 |
By assistant
Preview
| assistant | score | named in, this week | usual spot, this week |
|---|---|---|---|
| ChatGPT | 4 | 5% of answers | #3.0 |
| Claude | 35 | 55% of answers | #4.8 |
| Gemini | not sampled this week | ||
| Perplexity | 13 | 20% of answers | #5.0 |
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 |
Where they differ
Only Preview gets named for
- What's the best PDF editor for Mac?
- What's the best tool to compress a large PDF?
- What's the best tool to redact or remove sensitive text from a PDF?
Only Sejda gets named for
- Which PDF tool is best for privacy and sensitive documents?
More comparisons
- Preview vs Stirling PDF
- Preview vs Smallpdf
- PDF Expert vs Preview
- PDF-XChange Editor vs Preview
- Sejda vs Stirling PDF
- PDF Expert vs Sejda
Not sold on either?
Scores count how often each assistant names a product, weighted by position. How the score works · Full PDF editors leaderboard