Choose the representation that matches the job. Image formats, vector documents, video containers, and codec families describe different parts of a visual pipeline.
| Format | What it represents | Key distinction | Workflow consideration |
|---|---|---|---|
| PNG | Raster image | Lossless image coding with transparency support. | Useful for crisp graphics, composited frames, and outputs that need alpha. |
| JPEG | Raster image | Usually lossy photographic image coding; common JPEG files have no alpha channel. | Useful for photographic previews where output size and quality must be balanced. |
| SVG | Vector document | Describes shapes, text, and reusable graphical elements; can also contain raster images. | Useful for scalable borders, templates, overlays, and graphic composition. |
| MP4 | Media container | Organizes media streams and timing. The container alone does not identify every codec inside. | Inspect the actual streams before selecting a decoder or planning frame extraction. |
| MPEG | Standards family | A family of media standards, not one universal file format or image type. | Identify the specific container and codec rather than treating the label as a complete specification. |
Begin with how the result will be used. A social thumbnail, an AI input, an editing intermediate, and a transparent picture frame have different requirements. Decide whether you need photographic detail, alpha transparency, exact dimensions, scalable shapes, or a sequence of timed images. Then choose the representation that preserves those requirements.
A file conversion does not automatically improve the underlying image. Putting a photograph inside an SVG document does not turn its details into vector paths. Saving a compressed source as a PNG preserves the decoded pixels; it does not reconstruct detail already lost earlier in the pipeline.
Store source identifiers, selected timestamps, dimensions, orientation, color assumptions, and transformation settings alongside exported assets. An image filename can describe the content, but a manifest is a better place for the exact processing history. Use the same record to connect later edits or AI observations to the original source.
Video work starts with inspection. Read the streams, time bases, dimensions, duration, and encoding details. Decide whether you need an exact frame, a representative thumbnail, a periodic sample, or a scene-oriented selection. These are separate requests even if they produce the same output image format.
The MDN image-format guide provides format background; the FFmpeg documentation explains media processing and stream relationships.
Image formats solve different problems. Learn when PNG, JPEG, and SVG fit a frame workflow, and how composition, transparency, color, and export decisions change the final result.
Read the guide
Turn photographs into consistent digital compositions with explicit contain, cover, and crop rules, deliberate borders and mats, transparent exports, and a review process for finished pixels.
Read the guide
Reliable frame extraction starts with timing rules. Explore timestamp selection, variable frame rates, keyframes, sampling strategies, and the metadata that makes every extracted image useful.
Read the guide