> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.carbone.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Why dynamic pictures are not rendered into my document?

# Dynamic pictures are not injected into a report

When using [dynamic pictures](https://carbone.io/documentation.html#dynamic-pictures) with image URLs or Data-URLs, images may not appear on the document If an error occurs, and a replacement error image is used (white crossed images).

## Error reasons

* (URL format) The file type is not provided by the file extension nor by the file mime-type
* (URL format) The file can't be download because of restrictions: the file is protected by a proxy, a VPN or read restrictions
* (URL format) The download timeout because the file is too big
* (URL & Data-URL formats) The file type is not supported, only supported: `jpeg`, `png`, and `gif` for all templates. `svg` are accepted only for ODS/ODT reports.
* (URL & Data-URL formats) The URL or Data-URL formats are not valid