வாட்ஸ்அப், இன்ஸ்டா, யூடியூப், பிரிண்ட் படங்களின் அளவுகள்

You make a lovely AI picture, post it, and the face is cut off. This is a size problem, not a quality problem. By the end of this guide, you will know which shape to choose for WhatsApp, Instagram, YouTube and print, and how to tell the AI before it draws.

What an aspect ratio means

An aspect ratio is the shape of the picture, written as width to height. 1:1 is a square. 16:9 is a wide rectangle like a TV. 9:16 is the same rectangle standing up, like your phone screen. Pixels are the tiny dots that make the picture. More pixels mean more detail, which matters most for printing.

WhatsApp Status, Reels and Stories: 9:16

These full-screen formats use tall pictures. A common size is 1080 by 1920 pixels. Keep faces and important text away from the very top and bottom, because buttons and captions cover those parts. Leave a safe margin of about one-seventh of the height at each end.

Instagram posts: 4:5 or 1:1

A 4:5 picture (for example 1080 by 1350 pixels) takes more space on the screen than a square, so it stands out. A 1:1 square (1080 by 1080) is safe for profile-style pictures and offers. Instagram settings and grid shapes can change, so check the app's current display before posting a large batch.

YouTube thumbnails: 16:9

Use 16:9 at 1280 by 720 pixels. Thumbnails are viewed very small on a phone, so use one clear face, bold shapes and plenty of contrast. The time label sits in the bottom right corner, so keep that corner free.

Print: think in pixels and dpi

For printing, the rule of thumb is 300 dpi (dots per inch). An A4 page is about 8.3 by 11.7 inches, so it needs roughly 2480 by 3508 pixels. A phone screenshot, about 1080 pixels wide, will look soft on A4. If your AI picture is smaller, use it for a small print, such as a greeting card, or ask the app for its largest size. Ask your print shop which format they prefer.

How to ask the AI for the ratio

Put the shape in the prompt in plain words, and do it at the start or end. Write "vertical 9:16", "square 1:1" or "wide 16:9 landscape". Here is an example.

Edit the uploaded photo of me, an adult. Keep my face, skin tone, hairstyle and features exactly as in the photo. Show me at my shop counter in a vertical 9:16 poster, with empty space at the top for text and no readable text.

Not every app follows the ratio exactly. If it gives a different shape, reply: "Same picture, but make it vertical 9:16 and do not crop the face." For first steps in editing, read the beginner's walkthrough.

Leave space for your text

AI usually draws letters badly. So ask for no text, and add your words later in a free editing app. To keep space for them, say "large empty area at the top" or "clean plain wall on the left third". Ask for a simple background in that area so your letters stay easy to read. Festival greeting designs work well this way, and you can find ideas in the festival prompts.

Simple cropping advice

• Crop after the AI finishes, using the editing tool on your phone.
• Keep the eyes about one-third from the top of the frame.
• Do not stretch a picture to fit. Crop it instead, because stretching makes faces look wrong.
• Save a copy of the largest version before you crop.

Pick the shape before you write the prompt

Decide where the picture will go first. A birthday wish for a family group is best as a square or a vertical picture. A shop offer for your Status needs 9:16. A poster to print for the shop wall needs a high-resolution A4 file. If you make a wide picture and later crop it to vertical, you may lose both sides of the scene. So the shape you choose at the start saves a lot of fixing later.

Also think about the main subject. A single person looks good in vertical frames. A family of six looks better in a wide 3:2 or 16:9 frame, where everyone has room. When the family is in a vertical frame, faces become tiny and the AI is more likely to change them.

Finally, test once on your own phone before you share widely. Send the picture to yourself, open it the way your friends will, and check that the face and the text space look right.

Quick checklist

• Shape chosen first: 9:16, 4:5, 1:1 or 16:9
• Ratio written in the prompt
• Empty space left for text
• Faces away from the edges
• Print: about 2480 by 3508 pixels for A4
• Large original saved

Common questions

Why does WhatsApp make my picture blurry?

WhatsApp compresses pictures to send them quickly. Sending the picture as a document can keep more detail.

Can I make a small picture bigger for print?

Software can enlarge it, but detail is only guessed. The result may look soft, so test on one print first.

Is there a prompt tool for this?

Yes, try the prompt builder and browse more help in all guides.

Please use only your own photos, or photos of people who have clearly said yes. Results vary from app to app and even from try to try.