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What can I attach to a post? - File Types and Limits

What can I attach to a post? - File Types and Limits


May 2024.

Please note, this list may vary in the future.

Types of files which may be attached
  • doc, docx - Microsoft Word format documents
  • xlsx, xls - Microsoft Excel format spreadsheets
  • bmp - Bitmap image format (less common now)
  • gif - Animated image format
  • html - HyperText Markup Language, the code used to create web pages.
  • jpg, jpeg - Common image format for photographs
  • mp3 - Audio file format for audio
  • mp4 - Video file format commonly used for online videos
  • pdf - Portable Document Format, used for sharing documents that retain formatting
  • png - Portable Network Graphic, similar to a .jpg image but is compressed with lossless compression
  • txt - Text file. Plain text in a file produced by applications such as Microsoft Notepad
  • webp - WebP offers much smaller files sizes than PNG or JPEG
  • zip - An archive file that compresses files to a smaller size
Size limit per file

Current size limit is 7MB per attached file. File sizes can be reduced using online services such as Image Resizer.

Quantity limit per post

Current quantity limit is 10 attachments per post. To attach more than 10 files, just make additional posts. You may make as many posts as you like.

Why these limits?

The attachments have to be resized by the server before final display. If we hit the server with too many, or too big attachments at the one time, the available RAM (memory) may be exceeded causing the attachment process to fail.

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