Soft proofing in Lightroom Classic simulates how an output profile may reproduce your image. It can reveal colors that a printer and paper combination cannot reproduce and help you prepare a print-specific edit. The simulation remains dependent on the display, profile and viewing conditions.
This workflow uses Lightroom Classic's soft proofing controls. The Lightroom app has a different feature set and does not provide the same Classic soft proof workflow. Confirm the application before looking for a checkbox or following instructions written for the Develop module.
Get the output requirements first
Ask the print provider which file format, color space and dimensions it expects. Some services request an sRGB file and perform their own conversion. Others supply an ICC profile for proofing. A profile used to simulate output does not automatically become the profile you should embed in the submitted file.
For a printer you control, obtain the profile for the actual printer, paper and ink configuration, using the intended driver or media settings. A similarly named paper from another manufacturer is not a substitute. Read the profile provider's instructions for any required settings.
Keep this information with the print order. The print preparation guide covers the wider handoff questions, including dimensions and provider requirements. A correct soft proof cannot compensate for a file delivered at the wrong size or through an incompatible conversion path.
Prepare a dependable viewing setup
Use a calibrated and profiled monitor when possible, with stable brightness and neutral surrounding light. An excessively bright display can encourage an edit that prints too dark. Screen glare and colored room lighting make the comparison less dependable.
Check the normal edit before enabling proofing. Set an intentional exposure and credible color, using several reference areas across the image. The landscape white balance guide helps distinguish a global cast from color that belongs to the scene's light.
Preserve the master edit. A print may need a different treatment from a glowing screen image, especially in deep shadow separation. Keep those destination-specific changes attached to a separate proof version so later web exports do not inherit them accidentally.
Enable soft proofing and choose the profile
In Lightroom Classic's Develop module, enable Soft Proofing and select the intended output profile from the proof controls. Install a supplied ICC profile using the operating system's supported method if it is missing from the available profile list, then confirm that Classic can see it.
Inspect the image before changing any sliders. When available for the selected profile, compare the paper and ink simulation with it disabled. Paper white and the printable black range can make the proof appear duller than the normal screen preview.
Allow your eyes a moment to adjust to that changed presentation. Trying to make simulated paper look as luminous as the original monitor view can lead to excessive contrast or saturation. Compare meaningful texture and color relationships within the simulated range.
Compare rendering intents and gamut warnings
Compare the available Relative and Perceptual rendering intents on this image and profile. Relative colorimetric generally preserves in-gamut colors while mapping colors beyond the destination range; Perceptual can compress relationships across colors. Their visible results depend on the profile, so inspect the actual preview.
Look at saturated flowers, deep blue sky and warm rock, along with quieter neighboring colors. A better treatment of one saturated patch can alter nearby relationships. Choose the intent whose overall compromises suit the image.
Classic's gamut warnings help identify colors outside the monitor or destination gamut. Keep those two warnings distinct: a monitor warning concerns what your display can show, while an output warning concerns the selected proof profile. Neither warning requires you to desaturate the entire photograph.
Make restrained changes in a proof copy
Create a proof copy before making print-specific adjustments. This keeps a separate editable version associated with the proof settings without replacing the original image file. Name it so the intended paper or provider remains clear.
Address visible problems selectively. If a saturated region loses internal detail, reduce or shift that color gently and compare neighboring surfaces. For blocked-looking shadows, assess local separation before raising the whole exposure. Toggle back to the master to keep track of what changed.
Judge the visible proof alongside the gamut warnings. A small out-of-gamut accent may reproduce acceptably, while aggressive correction can flatten the entire scene. Judge the simulated appearance and retain a comparison of the less corrected version.
Check output settings before the test print
Export or print according to the provider's instructions. If Classic manages printer color through a selected profile, configure the driver as the profile instructions require so it does not apply another color conversion. A printer-managed workflow needs its own matching settings. Keep the proof profile separate from assumptions about the delivery space.
Evaluate a small test print under appropriate light before ordering a large final copy. Compare important shadow texture and saturated areas, then record any revision. Keep a separate screen export using the web export workflow, since a print proof and a browser image have different output requirements.