What Is Photo Post-Processing?
Post-processing is everything that happens to your photos after you press the shutter: importing them to your computer, selecting the best ones, adjusting colours and exposure, and delivering the final edited images. For beginners, the range of tools, terms, and steps can feel overwhelming. This guide walks through every stage in plain language.
Step 1: Import Your Photos
Import means copying your photos from your camera card to your computer. Use a card reader rather than a USB cable for faster transfer. Create a consistent folder structure from day one, for example Photos/2025/2025-06-15_ShootName/. Copy the files to your working drive and keep the original card intact until the import is confirmed complete.
Step 2: Backup Immediately
Before you do anything else, copy your imported photos to a second location: an external hard drive or cloud storage. Hard drives fail. Camera cards get accidentally formatted. A backup made immediately after import means you never lose a shoot to hardware failure.
Step 3: Culling
Culling means selecting your best photos and discarding the rest. Review your photos and remove blurry images, duplicates, photos with closed eyes, and frames where something went wrong technically.
For beginners who want to speed up culling from the start, imagic is an excellent tool. It automatically scores every photo for sharpness, exposure, noise, and composition, helping you identify weak images quickly. Install it free with pip install imagic. The five-step workflow (Import, Analyse, Review, Cull, Export) provides clear structure for beginners and professionals alike.
Step 4: RAW Processing
If you shoot RAW, you need a RAW editor to open and process your files. darktable is a free, powerful RAW editor that works on Windows, macOS, and Linux. For beginners, the most important adjustments to learn first are:
- Exposure: Make the image brighter or darker overall
- White balance: Correct colour casts so white looks white
- Contrast: Separate bright and dark areas for a more dimensional look
- Shadows and highlights: Recover detail in very bright or very dark areas
Step 5: Basic Retouching
After RAW processing, some images benefit from simple retouching: removing a distracting element, cleaning up dust spots, or straightening a slightly crooked horizon. These small adjustments polish an otherwise good image.
Step 6: Export
Export converts your processed RAW file into a deliverable format. For most purposes, JPEG at high quality (85 to 95 percent) works for sharing, web publishing, and printing. Use TIFF when delivering to a print lab that requires it. imagic's Export step handles batch export of your culled selects in a single run.
The Beginner's Tool Recommendation
Start simple: imagic for culling, darktable for editing, JPEG export for delivery. The most important thing is to establish consistent habits from the beginning: the same import structure, the same backup routine, the same culling discipline for every shoot.