Transparency builds trust. PDFX excels at merge, split, rotate, compression and basic conversions — but does not replace everything.
Limits
| Task | Browser | Server |
|---|---|---|
| Merge/split | Excellent | Unnecessary upload |
| Heavy scan OCR | Limited | Better |
| Qualified e-sign | No | Yes |
| 10k doc API batch | No | Yes |
When to use PDFX
Sensitive docs, quick tasks, no daily cap, no ads.
For small-screen reading, compare PDF and EPUB before converting. For scanned documents, review what OCR can recognize and what still needs human checking before choosing a local or specialist workflow.