To blur an iPhone picture’s background, open a photo with portrait depth information in Photos, tap Edit, and adjust Depth Control. For a new picture, use Camera’s Portrait mode. A regular photo can receive portrait effects afterward only when the phone captured the necessary depth information.
These are separate choices: capturing a new portrait, adjusting an existing portrait, or adding a simulated blur in another editor. The available controls depend on the iPhone, iOS version, and original image. Start with the photo you actually want to change.
Choose the Right Method
- Existing Portrait photo: use the Photos editing steps below when Depth Control is available.
- Regular Photo-mode image: check whether Photos offers Portrait effects. On supported phones, depth can be recorded for a person, dog, or cat even without shooting in Portrait mode.
- No portrait information: retake the photo in Portrait mode when possible, or use a separate blur editor. A screenshot or flattened copy does not become an editable portrait simply because you open Edit.
Before experimenting, duplicate the iPhone photo if you want a separate comparison copy. Keep the original with its depth information. Do not replace it with a screenshot of the edited result.
Adjust Background Blur in an Existing Picture
Apple’s Portrait editing instructions describe Depth Control and applying effects to eligible Photo-mode images. For a portrait already in your library:
- Open Photos and tap the picture to display it full screen.
- Tap Edit. If your version shows separate editing categories, choose Portrait to expose its controls.
- Use the Depth Control slider. On versions where it is hidden, tap the Depth button first. Move the slider while comparing the background and the subject’s edges.
- Stop when the subject remains clear and the background has the amount of softness you want. Tap Done, then reopen the saved picture to check the result.

The small dot on the depth slider marks the captured value. Compare your change with that point before choosing an extreme effect. Depth is the blur control; Portrait Lighting changes the illumination style instead.
Add Portrait Effects to an Eligible Photo-Mode Image
In Photos, open the image, tap Edit > Portrait if offered, then turn on Portrait at the top. Choose the Depth control, adjust the effect, and tap Done. If the Portrait option is absent, this route is unavailable for that image; it is not a universal conversion tool.
Apple’s Photo-mode portrait capture model list includes the iPhone 15 family, iPhone 16 family except 16e, and selected newer models. Check the exact list for your phone; a newer model name does not guarantee this particular capability. The Camera guide says depth information is captured when the Depth button appears in Photo mode.
Take a New Photo With a Blurred Background
If you can photograph the subject again, capture the effect at the start:
- Open Camera and select Portrait.
- Frame the subject and follow Camera’s distance and lighting prompts. Tap your intended subject to focus. Move closer or farther as directed rather than relying on one fixed distance for every phone and lens.
- Use the on-screen preview to check that the right subject stays sharp. Keep some separation between the subject and the background, and improve the lighting if the effect is unreliable.
- Tap the shutter. Open the result in Photos and inspect the face, hair, glasses, and other edges before sharing.
On current iOS, Camera also offers background-blur adjustment through Camera Controls > Depth in Portrait mode. You can revise the blur later in Photos on supported images. Apple’s Portrait mode support article covers older layouts and model restrictions.
Check Model and Subject Restrictions
Portrait mode is available on iPhone 7 Plus, iPhone 8 Plus, iPhone X and later, and iPhone SE (2nd generation) and later. The regular iPhone 7 and 8 are not included. Taking a portrait and adjusting its depth afterward are distinct capabilities; do not expect every older portrait-capable phone to show every modern editing control.
The rear cameras on iPhone XR, SE (2nd generation or later), and 16e require a detected person’s face for Portrait capture. Other supported combinations can handle pets or objects. If your phone rejects that subject, use an appropriate editor or another capture device rather than assuming Portrait is broken.
If the Image Has No Portrait Controls
Photos cannot supply its portrait-depth slider for every ordinary image. One alternative is Google’s Snapseed for iPhone, whose current listing includes Lens Blur and requires iOS 17 or later. It creates a separate simulated effect; it does not restore missing camera depth data.
Google’s Tools and Filters guide and Lens Blur reference document this workflow. The app’s newer interface may arrange the controls differently:
- Open a copy of the image in Snapseed and select Lens Blur from its editing tools.
- Choose an elliptical or linear focus area. Position the sharp region over the subject; pinch to change its size, shape, or rotation.
- Adjust Blur Strength for the effect and Transition for the fade between sharp and soft areas. Google’s documented gesture interface uses vertical swipes to choose a setting and horizontal swipes to adjust it.
- Review the outline of the subject. A geometric sharp area may blur part of a person or leave some background sharp; reduce the strength or reconsider the placement if that happens.
- Save a separate copy using the app’s copy/export option and open it in Photos to verify the result. Keep the untouched original.
Google’s save and export guide distinguishes an editable Save a copy from a flattened Export. A flattened export is broadly shareable but does not keep the editable stack in that file. Follow the options actually offered by your installed version.
Troubleshoot the Result
- No Portrait or Depth button: check the original file, capture mode, and model support. Try a known original Portrait photo to distinguish an image limitation from a phone limitation.
- Blurred subject edges: reduce the effect and inspect the full saved image. If retaking, simplify the background and improve light and separation. Strong blur cannot fix every outline error.
- Wrong person in focus: supported portraits allow selecting a different focus point in Edit. If that option is absent, it is not available for that photo/device combination.
- Live Photo behavior changes: applying Portrait to a supported Photo-mode Live Photo prevents using its Live Photo effects at the same time. Choose the effect you want.
Undo the Blur or Other Edits
To change only the portrait effect, follow our guide to removing Portrait blur. Turning it off is different from discarding every saved edit.
Apple’s undo and revert guide documents More > Revert to Original on current iOS. Older editing layouts offer Edit > Revert > Revert to Original. Reverting also removes other saved edits, so preserve a copy if you want to keep them. Apple’s Photos editing guide notes that edits sync across devices using iCloud Photos.
Frequently Asked Questions
Is this the same as blurring private information?
No. This guide creates a photographic background effect. Do not rely on adjustable portrait blur to conceal an address, document, or other sensitive detail in a shared image. Check the final copy separately.
Does rotating a picture make it a portrait?
Portrait orientation means a taller-than-wide layout. Camera’s Portrait mode records a depth effect. Rotating the picture does not add missing depth information.
Can I make an already out-of-focus subject sharp?
Adjusting the background effect does not recover detail that was never captured in the subject. Choose a sharper original or retake the picture when possible.
Start with the original image, choose the method its controls support, and compare the saved result before sharing. Keep a recoverable original for later changes.

Matthew Burleigh is the founder, head writer, and editor of Solve Your Tech, which he launched in 2012. He has written technology tutorials since 2008 and worked in IT since 2003, including small-business support, IT management, and consulting. He holds Bachelor’s and Master’s degrees in Computer Science from Arizona State University.
Matthew writes practical guides for Windows, iPhone and iPad, Microsoft Office, Outlook, Google apps, and Android. Solve Your Tech’s guides are tested on current devices or checked against official product documentation, with clear steps, sources, and update dates.
Read more about Matthew and how Solve Your Tech writes and updates its guides, or report a correction.