Numa Guide

Everything Numa does, and where to find it: from a first library to masks, culling and export, on Linux, iPhone, iPad and Mac.

• Getting startedInstall Numa, give it a folder of photographs, and choose which of its optional models to download.
• LibrariesAdd the folders you keep your photographs in, move between them, and bring new photographs in from a card or a camera.
• BrowsingThe grid, the filters, the loupe for one photograph at a time, and comparing a few side by side.
• CullingStars, picks and rejects with one key each, and Analyse, which measures every frame and suggests which to keep.
• Tidy UpExact copies, runs of the same frame and photographs past use, in small sets with Numa's pick. Nothing goes without your choice.
• PeopleName someone once and Numa finds them in every library. Recognition runs on your computer; nothing is sent anywhere.
• The editorHow the editor is laid out, how the sliders behave, and what is always at hand: Before, zoom, history, info, and copying edits to other photographs.
• LooksThe first tab: the camera profile and tone mapping a raw file is rendered with, presets, and LUTs.
• LightExposure and the five tone sliders, Auto, and the tone curve.
• ColourWhite balance, vibrance and saturation, the colour mixer, one colour picked from the photograph, and black and white.
• EffectsPresence (Clarity, Texture and Dehaze), a mist filter, a vignette, and grain.
• GradeColour grading: a colour for the shadows, the midtones and the highlights, or the whole photograph.
• DetailSharpening, noise reduction, AI denoise and AI sharpen, and the corrections for your lens.
• MasksChange one part of a photograph: the sky, the person, what you click on, or a shape you draw.
• RetouchHeal, clone and remove, sensor dust and passers-by found for you, pet eyes, and a face section that appears when there is a face.
• CropCrop, straighten, turn and flip, and correct perspective, by hand or by the lines in the photograph.
• HDRMerge a bracket of exposures into one photograph, and export highlights that shine on screens that can show them.
• ExportWrite your edits into new files, one photograph or a whole selection, in the format, size and colour space you need.
• Preferences and add-onsWhat you can set, which add-ons there are and what each is for, and where Numa keeps its files.
• Keyboard shortcutsEvery key in Numa for Linux. In the app, Ctrl+? or Ctrl+/ shows this list.
• iPhone, iPad and MacWhat is different in the Apple apps: the iPhone's quick editor on your Photos library, the iPad's two editors, and the Mac.
• Numa HomeYour household's photographs on a server of your own: every library in a browser, raws as Numa develops them, and Numa on your computer sending to it and bringing from it.