Import
File > Open takes a Photoshop document as a new Limner document, up to 16384 by 16384 pixels and 6 GB, including PSB, the Large Document Format. Layers, folders, folder and layer masks with their density and feather, text, drop shadow and glow effects, strokes and color overlays, vector masks, pattern fills, Smart Objects with their embedded originals, Pass Through folders, and twenty kinds of adjustment layer arrive live and editable. 8-bit, 16-bit and 32-bit float depths, grayscale, bitmap, indexed, CMYK, Lab and duotone files all open, converted to the 8-bit RGB Limner paints in. Whatever has no matching model in Limner is kept as pixels, and the import notice says which is which.
Export
Limner writes layered PSD that reopens in Photoshop with its text still typeable, its effects still adjustable, and its vector masks still paths. The writer uses RLE compression and per-layer bounds, so large documents with many layers export cleanly, and an animation exports as one flattened layer per frame for Photoshop's Make Frames From Layers. If the document holds something PSD can't keep, an Export with changes summary appears before the save dialog. Limner also exports OpenRaster, PNG, JPEG, CMYK TIFF, and SVG. The file picker and drag and drop accept PNG, JPEG, GIF, WebP, BMP, TGA, and TIFF.
Why it matters
PSD is the common language between art apps. Because Limner reads and writes it, you can start a piece elsewhere and finish it in Limner, or hand a layered file to a collaborator who uses a different tool.
Common questions
Does Limner keep my PSD layers?
Yes. Layers, folders, masks, text, effects, vector masks, pattern fills, Smart Objects, and adjustment layers open live, and layered PSD export reopens in Photoshop with text, effects, and vector masks still editable. Keep the original of anything that relies on a Photoshop feature Limner doesn't model; the import notice lists what was kept as pixels.
Is there a size limit?
PSD and PSB import supports canvases up to 16384 by 16384 pixels and files up to 6 GB on the desktop; the iPad build stops at 4096 pixels.
What else can it open?
PNG, JPEG, GIF, WebP, BMP, TGA, and TIFF images, plus tip shapes from Photoshop .abr brush files.