How Fast and Light Is OxnaPDF?
OxnaPDF is built to open quickly and stay out of your way. We measured it on an ordinary laptop against Adobe Acrobat, the PDF app most people know.
Measured on One Mac
Both apps were measured one after the other, alternately, on the same Mac at the same time: Apple M3 Max, 36 GB, macOS 26.7, on 6 Nov 2026. Each figure is the median of 5 runs after a warm-up.
78% faster
Busy until quiet, 500-page report
3.1 s in OxnaPDF vs 14.0 s in Acrobat (4.5× faster)
88% faster on 4-page PDF: 2.5 s vs 21.0 s (8.4× faster)
23% faster
Window open on screen
0.79 s in OxnaPDF vs 1.02 s in Acrobat (500-page report)
23% faster on 4-page PDF too: 0.84 s vs 1.09 s (1.3× faster)
36% less memory
Memory, 500-page report open
445 MB in OxnaPDF vs 694 MB in Acrobat (249 MB lighter)
29% less memory on 4-page PDF: 356 MB vs 498 MB (142 MB lighter)
82% smaller
Size on disk and background footprint
300 MB in OxnaPDF vs 1.7 GB in Acrobat (5.7× smaller)
0 helpers left running after quit (vs 1) · 0 updater services (vs 3)
78% fasterBusy until quiet, 500-page report:OxnaPDF 1.11.17: 3.1 s · Adobe Acrobat (26.002): 14.0 s
78% faster (4.5× · 10.9 s less wait)
| Measurement | OxnaPDF 1.11.17 | Adobe Acrobat (26.002) | OxnaPDF Advantage |
|---|---|---|---|
| MeasurementWindow open, 4-page PDF | OxnaPDF 1.11.170.84 s | Adobe Acrobat (26.002)1.09 s | OxnaPDF Advantage23% faster 23% faster (1.3× · 0.25 s quicker) |
| MeasurementWindow open, 500-page report | OxnaPDF 1.11.170.79 s | Adobe Acrobat (26.002)1.02 s | OxnaPDF Advantage23% faster 23% faster (1.3× · 0.23 s quicker) |
| MeasurementBusy until quiet, 4-page PDF | OxnaPDF 1.11.172.5 s | Adobe Acrobat (26.002)21.0 s | OxnaPDF Advantage88% faster 88% faster (8.4× · 18.5 s less wait) |
| MeasurementBusy until quiet, 500-page report | OxnaPDF 1.11.173.1 s | Adobe Acrobat (26.002)14.0 s | OxnaPDF Advantage78% faster 78% faster (4.5× · 10.9 s less wait) |
| MeasurementMemory, 4-page PDF open | OxnaPDF 1.11.17356 MB | Adobe Acrobat (26.002)498 MB | OxnaPDF Advantage29% less memory 29% less memory (142 MB lighter) |
| MeasurementMemory, 500-page report open | OxnaPDF 1.11.17445 MB | Adobe Acrobat (26.002)694 MB | OxnaPDF Advantage36% less memory 36% less memory (249 MB lighter) |
| MeasurementSize on disk | OxnaPDF 1.11.17300 MB | Adobe Acrobat (26.002)1.7 GB | OxnaPDF Advantage82% smaller 82% smaller (5.7× · 1.4 GB less disk space) |
| MeasurementLeft running after you quit | OxnaPDF 1.11.17Nothing | Adobe Acrobat (26.002)1 helper (AdobeResourceSynchronizer) | OxnaPDF Advantage100% clean exit 0 left running (vs 1 helper) |
| MeasurementBackground services installed | OxnaPDF 1.11.17None | Adobe Acrobat (26.002)3 (Acrobat updater) | OxnaPDF Advantage100% fewer services 0 background services (vs 3) |
How we measured:
- "Window open" is the time from opening the file until the app's window is on screen.
- "Busy until quiet" is the time until the app stops using the processor.
- Memory is the figure Activity Monitor shows, counting only the processes inside each app's folder.
- Other work was running on the Mac during the test, the same for both apps.
Why It Is Light
- One app on every platform, with our own PDF engine.
- No background services, updaters or helper processes left running after you quit.
- The online tools run in your browser, so they need no installation at all.
See also: OxnaPDF and Adobe Acrobat Compared.