A lead ad is made up of an ad unit and a contact form, or "instant form." The guidelines for lead ads are the same as for normal link ads.

For a full list of design recommendations for lead ads, visit the Facebook Ads Guide.

Design specs for lead ads on Facebook:

The recommended image size ensures that your image always looks high-quality. The recommended text length is how many characters of ad copy could be displayed on smaller screens.

Images:

• Recommended image size: 1,200 x 628 pixels
• Image ratio: 1.91:1
• Text: 125 characters
• Headline: 25 characters
• Link description: 30 characters

Videos:

• Text: 125 characters
• Headline: 25 characters
• Aspect ratio: 9:16 to 16:9
• Video: H.264 video compression, high-profile preferred, square pixels, fixed frame rate, progressive scan
• Format: .mp4 container, ideally with leading MOOV atom, no edit lists

Design specs for lead ads on Instagram:

Images:

If you'd like your lead ad to appear on Instagram, check to make sure that it meets the following guidelines.

• Image ratio: Landscape (1.91:1), square (1:1), vertical (4:5)
• Minimum resolution: 600 x 315 pixels (1.91:1 landscape) / 600 x 600 pixels (1:1 square) / 600 x 750 pixels (4:5 vertical)

Videos:

• Aspect ratio: 1:1
• Video: H.264 video compression, high-profile preferred, square pixels, fixed frame rate, progressive scan
• File type: .mp4 container ideally with leading MOOV atom, no edit lists

Bear in mind that your image may not include more than 20% text. Learn more.

* Nguồn: Facebook