File › Place and File › Open read PSD and PSB files: the merged image
every such document carries after its layers, which is what a linked PSD
shows. A placed PSD links like any image, so the Links panel updates and
relinks it, and it is sized by its ResolutionInfo resource.
The reader is written from the public file format specification. It
reads Bitmap, Grayscale, Duotone, Indexed, RGB, CMYK (through the colour
settings' CMYK) and Lab, at 1, 8, 16 and 32 bits per channel (32-bit
values are linear), raw, PackBits or zipped with or without prediction.
A document with transparency stores its merged image on white with the
alpha in the first extra channel. It comes back with straight colours,
also for 16- and 32-bit files, which say so in their Lr16/Lr32 block.
Multichannel files are refused with a message. The file is untrusted:
every read is bounds-checked and the image's size is checked against
the decode budget before anything is allocated.
PSB is a read-only format of its own, so exports never write a PSD under
a .psb name. The desktop packaging still doesn't associate either
extension with VectorCraft (UNASSOCIATED_EXTS): they belong to raster
editors. Layers (import options) are left for later.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Links panel lists every image (thumbnail, name, page, missing/modified/embedded
badge) with Show filters, sorting and thumbnail sizes; its buttons and flyout relink
(to a file or a folder), go to, update, edit the original, embed and unembed, show in
folder and open Placement Options. Link Info shows format, colour space, location, ppi
and effective ppi, dimensions, scale, rotation, size and dates. Edit > Edit Original
and the Properties panel's image section reach the same commands.
Engine: links.list, links.goTo, links.embed, links.unembed, links.info and
links.placementOptions; links.relink and links.update now place the new file as the
image's Placement Options say (transforms, bounds, file dimensions, fit, fill, the
alignment point, clip to the old bounds). Model: ImageObject.placement.
UI: links.editOriginal, links.reveal, ui.placementOptionsDialog; Services.open_file
and pick_folder on the desktop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A linked image (`ImageObject.link`, now a LinkInfo: absolute path, path relative to the document,
size, modification time, hash, page; old path strings still load) keeps a low-resolution preview
(`ImageBlob.proxy`, at most 256 px a side) that a native save writes in place of the pixels of
images only linked images show. Opening a native document reads the linked files again, looking
for each at its path, then relative to the document and by name in its folder: missing files
show their preview, modified ones are read again only with Update Links: Automatically.
`document.open` reports `missingLinks`, `modifiedLinks` and `updatedLinks`.
links.check reports each link's status, links.update reads modified files again and
links.relink points images at another file or at same-named files in a folder (each keeps its
bounds; one undo step). In the app, a document opened without its linked files asks about each
(Replace…, Ignore, Apply to All), then offers to update modified links when the preference asks.
The renderer caches previews apart from the file's pixels; the Eyedropper samples previews in
the object's pixel space.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
