> Quick answer: Crop your iPhone photo to 1:1 or 4:5, export as JPG, keep text under 20% of the image area, and preview across placements before you publish.
Your iPhone takes sharp, detailed photos. But Facebook has specific rules about dimensions, format, and resolution that most phone shots don't meet by default. Follow these four steps to turn a casual iPhone photo into a Facebook ad that actually looks good.
What Are Facebook Ad Image Requirements?
Facebook Feed ads have strict specs. Get them right before you upload anything.
Recommended dimensions for Facebook Feed ads
Per Meta's Ads Guide, Facebook Feed image ads support aspect ratios from 1.91:1 to 4:5. The recommended resolution is 1440x1440 pixels for a 1:1 square crop, or 1440x1800 pixels for a 4:5 portrait. Portrait ads take up more vertical screen space on mobile. That usually means more attention.
File format and size limits
Facebook accepts JPG and PNG only. Maximum file size is 30MB. For real-world photos, JPG is the right call. It compresses efficiently and keeps quality high after Facebook's own compression pass.
Why resolution matters for iPhone photos
Meta recommends uploading at least 1080x1080 pixels. Upload lower and your ad may look blurry after the platform compresses it. Your iPhone handles resolution easily. The challenge is aspect ratio, not megapixels.
Step 1: Check Your iPhone Photo's Current Size
Start with a clear picture of what you're working with.
How to find pixel dimensions on iPhone
Open the Photos app. Tap your photo and swipe up. The info panel shows the pixel dimensions. Most modern iPhones shoot at 12MP or higher, producing roughly 3024x4032 pixels.
Understanding aspect ratio and how it affects placement
iPhone cameras typically capture at a 3:4 ratio. Facebook Feed prefers 1:1 or 4:5. Those numbers don't match without a crop. Upload without cropping and Facebook will auto-crop for you. That rarely ends well.
Why iPhone native resolution may not match Facebook specs
You have plenty of pixels. The proportions are just wrong. A 3024x4032 shot needs reframing before it fits Facebook's placement rules cleanly.
Step 2: Resize and Optimize the Image
This step prevents the distortion and blurring that kill ad performance.
Use smart resize tools to avoid distortion
Don't stretch the image manually. Stretching breaks proportions and makes your ad look amateur. Coinis Revise has a Smart Resize feature that crops and fits your photo to any Facebook ad dimension in one click. No guessing. No manual cropping.
Upscale low-res photos for sharpness
Shot on an older iPhone or at a lower quality setting? AI Upscale in Coinis Revise sharpens and enhances resolution before you upload. Your image stays crisp even after Facebook's compression.
JPG vs PNG: which format to choose
Use JPG for photos. It compresses well and loads fast. Use PNG when you have graphics with flat colors or transparent backgrounds. Both work on Facebook, but JPG is the right default for iPhone photography.
Step 3: Enhance and Polish the Image
A technically correct image still needs to compete in a busy feed.
Adjust brightness and contrast
Ads compete with personal posts on every scroll. A dark or flat image won't stop anyone. Boost contrast slightly. Sharpen colors. Small adjustments here can meaningfully change how many people pause on your ad.
Remove unwanted objects or distractions
Got a cluttered background? A stray person in the corner? Use AI Erase in Coinis Revise to remove them cleanly. No design skills needed. Coinis routes the edit through premium AI models that understand image context.
Add text or a logo
Text overlays help ads communicate instantly. Keep text under 20% of the image area. Meta may limit delivery on heavy-text ads. Use Edit text on image in Coinis Revise to add clean, on-brand copy directly onto your photo.
Step 4: Upload and Preview in Ads Manager
Getting the image right is only half the job. Check how Facebook actually displays it.
How Facebook displays your image across placements
Facebook shows the same image differently across Feed, Stories, and Reels. Per Meta's documentation on Creative Enhancements, the platform crops and adjusts media per placement automatically. What looks perfect in Feed can get clipped in Stories.
Test on mobile before publishing
Most Facebook users scroll on their phones. Preview your ad on a mobile screen before you go live. An image that looks clean on desktop can feel cramped or poorly cropped on a smaller display.
Iterate quickly when cropping looks off
If the preview shows a crop that cuts your product, go back and reframe the image. A small fix now saves you from launching an ad that nobody understands.
When to Start Fresh Instead of Optimizing a Photo
Some iPhone photos aren't worth fixing. Know when to cut your losses.
Signs your iPhone photo won't work
Bad lighting that no adjustment can fix. A blurry background drawing attention away from the product. A composition that doesn't read clearly in two seconds. If you're spending more time editing than the photo deserves, skip it.
Generate a professional ad from a product URL
Coinis Image Ads workflow generates Facebook-ready ad creatives from a product URL. Paste the URL. Get polished images with correct specs, brand colors, and copy. No photographer required.
AI-generated creatives start spec-perfect
AI-generated ads are built to Facebook's specs from the first pixel. Correct dimensions. High resolution. On-brand text. They skip the entire resize-and-optimize loop. Use them when your phone photo just isn't the right foundation.
Or let Coinis do it.
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Frequently Asked Questions
What size should I crop my iPhone photo for a Facebook ad?
Crop to 1440x1440 pixels for a 1:1 square or 1440x1800 pixels for a 4:5 portrait. Both work well in Feed. Portrait takes up more mobile screen space, which can help visibility.
Does Facebook automatically resize images when you upload them?
Facebook can apply Creative Enhancements that crop images per placement. But relying on auto-crop often produces poor results. Resize and crop manually before uploading to control exactly what users see.
How much text can I put on a Facebook ad image?
Meta recommends keeping text under 20% of the image area. Heavy text can limit delivery or get your ad flagged. Use a tool like Coinis Revise to add text precisely without going over.