Flatten-only PSD to JPEG: freeze which layers are truly visible before merge so online composites cannot tell a different story than your canvas
Many incidents come from hidden alternates, notes, or color plates that suddenly count as visible pixels during server flattening while the designer’s window still shows another stack. `flatten-psd-jpg` assumes strict PSD hygiene: clipping masks point to the right base, global-light styles behave at export resolution, and spot or auxiliary channels are resolved on desktop first. The tool merges visible pixels to JPEG—it will not infer creative intent—so flatten workflows need disciplined layer comps and naming.
Как использовать
- Capture a layer-comp or screenshot of the external visibility state, turn off scratch layers, verify no empty groups smuggle effects, and merge groups locally when parser differences are a risk.
- For heavy styles, smart filters, or exotic blends, manually flatten a throwaway copy in Photoshop and diff critical ROIs against the online JPEG before blaming the encoder.
- Ship filenames with FLAT and a timestamp and state plainly that text is rasterized; if copy must change, reopen the PSD rather than editing the JPEG.
PSD to JPG (flatten) FAQ
Effects change after flattening—why?
Stack order, clipping targets, or layers you thought were hidden can change which pixels contribute once a server honors “visible” rules differently than your local window. Freeze a visibility snapshot, merge to a scratch layer in Photoshop to confirm no alternate art or annotation plates snuck in, then upload for JPEG encoding so surprises are caught before clients see them.
Layer styles shift position vs preview—what gives?
Check resolution/global light dependencies; rasterize styles or smart-object them before merge.
Spot-channel PSDs straight to JPEG—what happens?
Spot plates may be dropped, merged into unexpected CMYK builds, or simulate ink oddly when forced into RGB JPEG; online tools will not make print-grade separation decisions for you. Resolve spots with the printer on desktop, convert or split plates deliberately, then export the screen JPEG so future color arguments reference the correct print artifact—not a browser preview.
Transparent PSD on white JPEG shows gray fringe?
Pick the right matte color; composite on the intended plate in PS before export.
Emergency flat JPEG while PSD still edits—how to control risk?
Ship timestamped freeze builds labeled non-final; continue work under new filenames.