--- title: "AI Facebook Post Images: Describe and Refine" url: https://www.imagequarry.com/social-media-images/facebook-posts/ last_updated: 2026-10-20 --- # AI Facebook post images you describe and refine one change at a time A Facebook post image appears in the news feed alongside the post text, and the platform resizes it to fit different screen widths. Facebook's help center notes that cover photos display best at 851 by 315 pixels in sRGB JPG under 100 kilobytes, and while feed images are more flexible, keeping them sharp and well-composed matters because Facebook crops tall images in the preview. ImageQuarry lets you describe the image, or upload a photo and ask for changes in words: a brighter background, a different crop, a holiday theme. Each request builds a new version while the earlier ones stay in the workspace. Facebook compresses images on upload. Start from the highest quality you can get, and check how the image looks in the feed preview before publishing. ## From a description to a post-ready image 1. **Describe the post's image** Name the subject, the setting and the mood. If the post is a link share, the image will preview as a landscape rectangle, so describe a wide composition with the subject centered. 2. **Refine in words** Ask for a color shift, a simpler background, or more headroom for a text overlay. Say what to keep: "Keep the product and the table." Each request makes a new version from the one you selected. 3. **Compare and download** Put the versions side by side, choose the one that fits the post, and download it. Facebook accepts most common image files, but sRGB JPG tends to compress with fewer surprises. ## Requests written for Facebook posts Each card is a request you could type. None is a result. - **Link share preview image**: A link share crops the image to a wide rectangle. Describe a landscape scene with the subject centered and enough margin. - **Event announcement with date space**: An event post often carries the date in a text overlay. Leave clean space for it. - **Product comparison side by side**: Two products in one frame let the caption compare them. Name both and where they sit. - **Seasonal refresh from an existing photo**: Upload last quarter's product shot and ask for a seasonal shift. - **Community milestone graphic**: A milestone post needs clean composition and a bold focal point. ## What Facebook post images need to get right - **Link previews crop to landscape**: When a post shares a link, Facebook generates a preview that crops the image to roughly 1.91:1. If the main subject is not centered, the crop may cut it off. - **Facebook compresses uploaded images**: The platform re-encodes images on upload. Facebook's help center recommends sRGB JPG files under 100 kilobytes for cover photos to reduce compression artifacts, and the same principle helps for post images. - **Alt text is available on Facebook**: Facebook allows you to add alt text to images. Writing a clear description of the image helps people who use screen readers and improves how the platform categorizes the post. - **Every version keeps its path**: Each change produces a new version and the earlier ones are preserved, with the prompt, the uploaded source and any references that produced them. - **Choose a model for a different look**: ImageQuarry offers Nano Banana 2.1 by default, plus Nano Banana Pro, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst. Switch when you want a different result for the same request. ## Facebook post image jobs and what to ask for | Post type | Image goal | Request to start from | |---|---|---| | Link share | Wide preview with centered subject | "Product on a counter, landscape crop, centered, morning light." | | Photo post | Standalone feed image | "The team at a long table, candid, warm indoor light." | | Event post | Date and venue overlay space | "Bokeh string lights, lower left empty for text overlay." | | Milestone | Bold focal number or word | "Large bold '1000' on a navy to gold gradient with confetti." | | Seasonal update | Timely refresh of an existing image | "Change the background from white to autumn leaves. Keep the product." | ## What an AI Facebook post image is An AI Facebook post image is a visual for the news feed created from a written description, or changed from a photo you upload, rather than shot for the post. In ImageQuarry it starts a conversation: describe the scene, refine it, and keep every version until one fits. _It is not a Facebook ad creative tool, and it is not a cover photo generator, though both jobs can use the same workspace. If the post needs a real photograph, use a camera and treat the AI image as a concept or a layout preview._ ## Questions about AI Facebook post images ### What dimensions work best for a Facebook post image? Facebook accepts many sizes, but link-share previews crop to roughly 1.91:1 landscape. Describe a wide composition with the subject centered, then check the downloaded file before posting. ### Does Facebook compress my image? Yes. The platform re-encodes images on upload. Starting from a high-quality file and using sRGB JPG reduces visible compression. ### Can I use a reference for brand colors? Yes. Add a reference image and ask for those tones. References guide the result, so review each version to see how closely it follows them. ### Can I start from a photo I already have? Yes. Upload the photo and describe what to change: the background, the crop, the lighting. The original stays as the first version. ### How do I make room for a text overlay? Describe where the clear zone should be: "lower left empty" or "top third a solid band." Then add text in your design tool after downloading. ### What does ImageQuarry cost? Every plan is paid: Starter at $9 per month with 100 image credits a month, or Pro at $29 per month with 300 image credits a month. ### What is ImageQuarry not? It is a workspace for creating and editing images in words. It is not a social media scheduler, a template library or a background-removal-only tool. ## More social media image ideas - [AI Facebook cover photos](https://www.imagequarry.com/social-media-images/facebook-cover-photos/): Wide banner images for page and profile covers. - [AI Instagram post images](https://www.imagequarry.com/social-media-images/instagram-posts/): Feed images sized for Instagram. - [AI LinkedIn post images](https://www.imagequarry.com/social-media-images/linkedin-posts/): Professional feed images for LinkedIn. - [AI Facebook ad images](https://www.imagequarry.com/ai-ad-images/facebook-ads/): Paid ad visuals for Facebook placements. - [All social media images](https://www.imagequarry.com/social-media-images/) ## Sources Checked 2026-10-20. - [Facebook Help Center: Page profile picture and cover photo dimensions](https://www.facebook.com/help/125379114252045) ## Pricing - Starter: Starter at $9 per month with 100 image credits a month - Pro: Pro at $29 per month with 300 image credits a month ## Describe the post. Then keep refining. Start with the scene or the product, ask for one change at a time, and keep every version until one fits the caption.