Acorn 4.4 – Bitmap image editor.

Acorn 4.4

Acorn is a new image editor built with one goal in mind – simplicity. Fast, easy, and fluid, Acorn provides the options you’ll need without any overhead. Acorn feels right, and won’t drain your bank account.

  • Take screenshots using Acorn and edit them right away.
  • Chain together image filters to create stunning effects.
  • Layer based image editing, an industry standard.
  • Make new images and layers using your built-in iSight.
  • Easy image and canvas resizing, just by changing the size of your window.
  • Take advantage of every pixel of your monitor with full screen image editing.
  • Tablet sensitive for pressure strokes and using the tablet’s eraser.
  • Vector shape and text layers.
  • Freeform, elliptical, rectangular, and magic wand selections.
  • Gradients.
  • Create and apply custom text styles.
  • Control opacity and blending modes for each layer.
  • Write plugins using the Python scripting language, as well as in Objective-C.
  • GPU powered. The same graphics card that makes your gaming experience smooth, helps Acorn fly through the toughest of graphics operations.

What’s New

Version 4.4:
New Stuff

  • Live font updates to text boxes as you move look through the font list in the text palette.
  • Acorn will now give live updates to the blending mode for layers when using the arrow keys on the Blending popup button.
  • New preference for a "Super Scrollable Canvas", which basically means you can scroll your canvas around beyond the bounds of your image. This is awesome if you do lots of work with a stylus.
  • When making or moving guides, they will now snap to document bounds (if you have the snap options turned on. And did you know you can temporarily disable snapping by holding down the control key? Well, now you do).
  • When dropping into Quickmask mode, Acorn will set the front color to white and the back color to black, making it easier to draw in or erase your selection. When you drop out of Quickmask mode, your previous colors are restored.
  • If you have multiple layers selected and want to put them in a group, command-g is your friend. And if you have a group layer selected and would like to ungroup it - command-shift-g is also your friend.
  • New Clear Selection and Inverse Selection menu items added to the canvas contextual menu when you have a selection.
  • If you double click on the Text Palette's baseline, kerning, line height, or paragraph spacing labels, Acorn will reset the value of that slider. If you hold down the command key while double clicking on any of those, Acorn will reset all the text spacing values.
  • You can now select non-contiguous layers in the layers list, and merge them into a single layer using the Layer ▸ Merge Layers menu item.
  • The contextual menu in the layers list now allows you to merge a clicked layer down.
  • Pressing cmd-1 would always scale your canvas to 100%. But new in 4.4: if your canvas is already at 100% and you press cmd-1, the canvas will center itself.
  • You can now export an image as a TIFF with CMKY.
  • When you change values in the brush designer, updates to your brush strokes are done in the background. This is awesome because it means Acorn stays super responsive when you're making little changes.
  • AppleScript stuff
Changed Stuff
  • You can now have a negative baseline for text shapes.
  • Acorn now defaults to keeping objects selected after creating them (though you can change this in the prefs if you liked the old behavior).
  • First, some background: Selections are undable. Shape layers can have selections of their own. Shape layer selections are removed when you switch to another layer. If you are on a shape layer with a selection and move to another layer, your selection would be removed and if you hit undo your selection would come back. However, the active layer was still the one you moved to. So now in version 4.4, if you undo a selection on a shape layer and it's not the active layer, Acorn will now make it active. So an undo (or redo) action could potentionally change the active layer. I hope that made sense.
  • There was a menu shortcut conflict introducted at some point, where Hide Selection and Hide Layer were both given control-command-h. The shortcut for Hide Layer has been remapped to shift-control-command-h to resolve this.
  • If you delete a layer, and then undo it- Acorn will now remember to reselect it if the layer was selected before deletion.
  • You can now delete a layer while transforming it, without an alert coming up.
  • Crop preset improvements: If you have the option "Keep aspect ratio" enabled when saving a crop preset, and the size of that preset is smaller than the canvas you are using it against, Acorn will scale up the preset to the size of the canvas while preserving the aspect ratio.
  • The Automator actions got a little love - please let us know ASAP if something stoped working for you.
  • QuickLook previews of Acorn images should be loading faster now. In addition, Acorn now saves thumbnails for native Acorn images, so QuickLook thumbnails now show up super fast for really big images.
  • When copying to the clipboard, Acorn will now make sure the dpi for your image tags along as well.
  • If a shape layer has a linked mask, and you are moving every shape on the layer, then the mask will move as well. If you don't have all the shapes selected, the layer mask will not move.
Fixed Stuff
  • Fixed a bug where Acorn wouldn't open rotated + flipped (as set in the exif orientation information) images correctly.
  • Fixed a bug where web export would show text selection if you had… text selected in your canvas.
  • Fixed a bug where you couldn't delete a layer with command-delete if it wasn't visible.
  • Fixed a bug where option-dragging bitmap layers on the canvas to duplicate them would make them show up in strange places sometimes.
  • Fixed a bug where PSD files weren't exported correctly for small layers.
  • Fixed a bug where setting the opacity for a layer would sometimes fail if you had just deleted a layer's mask.
  • Fixed a bug where switching to a layer mask from a shape layer woulnd't clear the layer selection.
  • Fixed a bug where the [ and ] keys wouldn't change the pencil tool brush size.
  • Better stylus (Wacom and friends) handling when brushing.
  • Fixed a bug with the brush tool where sometimes the first dab with a tablet would show up 100% opaque when it wasn't supposed to.
  • Fixed some visual glitches with the Magic Wand HUD.
  • Fixed a bug where the ruler bounds markers when moving around a vector shape were drawing in the wrong location on retina displays.
  • Fixed a problem where moving your layer around while in Free Rotate would cause it to move at half the speed it should on retina displays.
  • Fixed a bug where rotated + squished brushes would sometimes clip when drawing.
  • Various canvas free rotate bug fixes.
  • Fixed a crasher when using Convert to Bezier shape with rectangles of a certain size (or lack of one actually).
  • Fixed a crasher when closing an image when in the middle of a canvas free rotate.
  • Fixed a bug where Acorn wouldn't respect the system preferences for max documents to be remembered.
  • Fixed a problem where moving selected pixels in a layer mask would cause incorrect drawing.
  • The image browser now opens up a bunch more RAW file types.
  • Fixed a bug where moving a group layer with snap to document edges turned on would cause real ultimate wrongness.
  • Fixed a problem when using the Tilt Shift filter when you were zoomed in.
  • Fixed a bug where the name of the layer in the layers list palette would sometimes overlap with the fx button when editing.
Other Stuff
  • When entering the versions browser (when Autosave and Versions is turned on in the prefs), Acorn will now hide its tools and inspector palettes.
  • defaults write com.flyingmeat.Acorn4 trimToOpaquePixelsOnCopy 1


OS X 10.8 or later, 64-bit processor


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