Profile photo and headshot requirements, quoted from each platform

Must reflect your likeness; logos, landscapes, celebrities and childhood photos can be removed.

• Pixel size is between 400 (w) x 400 (h) pixels and 7680 (w) x 4320 (h) pixels. source
• Maximum file size is 8MB. source
• File type must be PNG or JPG. source
• We don't support GIFs. source
• your profile photo must reflect your likeness. source
• Instead, aim to have your face filling about 60% of the space. source

• 1584 (w) x 396 (h) pixels (recommended) source
• Lesser than 8MB source
• JPG or PNG file source
• Recommended pixel dimensions are 1584 (w) x 396 (h) pixels. source

Up to 20 megapixels; doesn't have to be square.

• The file format is JPEG or PNG only. source
• The maximum file size is 5 MB. source
• The maximum pixel count is 20 million. source
• Photos don't have to be square; they are scaled automatically. source
• Your profile picture is used across all Google services. source
• Whatever the size of the photo being uploaded, the API downsizes it to 96x96 pixels. source

• The maximum supported size of a photo is 4 MB. source
• The size of the photo you can update to is limited to 4 MB. source
• The supported sizes of HD photos on Microsoft 365 are as follows: 48x48, 64x64, 96x96, 120x120, 240x240, 360x360, 432x432, 504x504, and 648x648. source

• Supported file types include JPG/JPEG, GIF, or PNG files smaller than 2MB source

• Your profile picture should be a minimum of 512x512 pixels, but no larger than 1024x1024 pixels. source
• Please limit your images to a maximum size of 1024 by 1024 pixels. source
• 512x512 pixels is the minimum. source
• try passing a JPEG, GIF or PNG source
• Width/height of crop box (always square) source

• Your profile picture should be a PNG, JPG, or GIF file source
• it must be less than 1 MB in size and smaller than 3000 by 3000 pixels. source
• For the best quality rendering, we recommend keeping the image at about 500 by 500 pixels. source

• Profile image: Go to Profile and select Update next to the profile picture. source

No official photo requirements found in this platform’s help pages.

No official photo requirements found in this platform’s help pages.

Close-up of head and shoulders, face clearly visible; no AI-generated photos.

• Photo should be at least 250 x 250 pixels and no more than 4,000 x 4,000 pixels source
• Accepted file types include .jpg and .png source
• Maximum file size is 5 MB source
• No fake or AI-generated photos source
• Your profile picture must be a close-up image of your head and shoulders, clearly showing your face. source

Show yourself clearly, facing the front; no GIFs, celebrities or other people.

• If the photo is of yourself, show yourself clearly and face the front. source
• Profile pictures should not be of another person, of a celebrity, be a GIF, or it should not misrepresent the service that you provide. source

Focused on your face; employers don't see it.

• Make sure the image is in JPG, PNG, or HEIC format. source
• Files must be smaller than 30 MB. source
• Use a photo that's focused on your face and a professional representation of yourself. source

• Recommended dimensions for profile images are 400x400 pixels. source
• Maximum file size for profile photos is 2MB. source
• supports JPEG, GIF, and PNG file formats. source
• Recommended dimensions for header images are 1500x500 pixels. source

No official photo requirements found in this platform’s help pages.

• Displays at 176x176 pixels on your Page on computers, 196x196 pixels on smartphones and 36x36 pixels on most feature phones. source
• Is cropped to a circle. source
• Should be 320 pixels wide and 320 pixels tall for best quality. source
• For profile pictures and cover photos with your logo or text, you may get a better result by using a PNG file. source

• JPG, GIF, BMP, or PNG file (no animated GIFs) source
• Image size should not exceed 15 MB. source
• Image that renders at 98 X 98 px. source
• It's best to upload a square or round image. source

• Click the current profile image and select a new image from your device. source

• Change your profile image by clicking the Update button and uploading an image from your device. source

Help pages conflict on JPG; PNG is accepted by both.

• Supported file types are PNG and GIF. source
• Accepted file types for server avatars are JPG, PNG, and GIF files. The maximum file size is 8 MB. source
• Like profile avatars, PNG and JPG are the supported file types and Nitro users can upload a GIF for their server avatars. source

No official photo requirements found in this platform’s help pages.

No official photo requirements found in this platform’s help pages.

• Gravatar allows most common image formats: JPEG PNG HEIC source
• Your image should be smaller than 10MB. source
• You may request images anywhere from 1px up to 2048px source
• By default, images are presented at 80px by 80px if no size parameter is supplied. source
• passing a single pixel dimension (since the images are square) source