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PCX at a glance
PCX
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
HEVC/H.265 at a glance
HEVC/H.265
The Joint Collaborative Team on Video Coding developed HEVC through ITU-T VCEG and ISO MPEG, building on H.264 coding tools while introducing 64×64 coding tree units, advanced motion compensation, and scalable/multiview extensions.
Format comparison
| Feature | PCX | HEVC/H.265 |
|---|---|---|
| File type | Image | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1985 | 2013 |
| Inventor | ZSoft Corporation | Joint Collaborative Team on Video Coding (JCT-VC) — ITU-T and ISO/IEC |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Not supported | Supported |
When to use each format
When to use PCX
- Your source file is already in PCX.
- Preserve source expectations before exporting to HEVC/H.265.
- PCX is commonly used in image workflows.
When to use HEVC/H.265
- Your target workflow expects HEVC/H.265.
- Improve delivery compatibility with HEVC/H.265.
- HEVC/H.265 is commonly used in video workflows.
FAQs
Why convert PCX to HEVC/H.265?
Convert to HEVC when the target environment can decode H.265 and the goal is to reduce bitrate for 4K, HDR, or long-form high-resolution video without giving up too much quality.
It is a strong target for premium streaming, UHD masters, efficient device delivery, and storage-sensitive archives that prioritize compression efficiency.
What changes when converting PCX to HEVC/H.265?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to HEVC/H.265 removes layer support. Moving to HEVC/H.265 adds HDR content. Moving to HEVC/H.265 adds streaming delivery.
What should I review after converting PCX to HEVC/H.265?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.