For the best image quality on AhaSlides, please follow the recommendations below.
AhaSlides supports the following image formats:
After upload, images are automatically optimized and converted to .webm format to improve performance and playback speed.
Maximum File Size
The maximum upload file size is 15 MB.
Image Dimensions & Aspect Ratio
Images will look best when their aspect ratio closely matches your presentation screen ratio.
The standard screen ratios are:
You may use other dimensions, but matching your presentation ratio will provide the best visual results.
Resolution Recommendations
For full-screen background images, we recommend using 2K resolution (2560 × 1440). This ensures a sharp display while maintaining smooth performance, even on large screens or projectors.
The maximum supported resolution after processing is 2560 × 1440 (2K).
Currently, Original quality background rendering is not supported.
Image Compression & Quality
All uploaded images are automatically optimized to ensure smooth presentation performance. There is currently no option to disable compression or preserve original quality after upload.
Presentation Rendering
During playback, presentations are rendered locally on the presenter’s device, not streamed from AhaSlides’ servers. This helps ensure stable and responsive performance during live sessions.
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