reflect.IsImageResourceWithMeta

Reports whether the given value is a Resource object representing an image with metadata.

Syntax

reflect.IsImageResourceWithMeta INPUT

Returns

bool

An image with metadata is an image format from which Hugo can extract dimensions and, if present, Exif, IPTC, and XMP data.

Usage

Use the reflect.IsImageResourceWithMeta function to determine if a resource is an image format from which metadata can be extracted.

{{ with resources.Get "image.avif" }}
  {{ reflect.IsImageResourceWithMeta . }} → true
{{ end }}

Formats with metadata

The following table shows the result of reflect.IsImageResourceWithMeta for various file types and their corresponding media types.

Filename	Media Type	With Meta
data.json	application/json	false
image.avif	image/avif	true
image.bmp	image/bmp	false
image.gif	image/gif	false
image.heic	image/heic	true
image.heif	image/heif	true
image.jpg	image/jpeg	true
image.png	image/png	true
image.svg	image/svg+xml	false
image.tiff	image/tiff	true
image.webp	image/webp	true

Example

You can use this function to safely extract and display metadata from a collection of images, ensuring you only call metadata methods on supported formats.

{{ range resources.ByType "image" }}
  {{ if reflect.IsImageResourceWithMeta . }}
    <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}">
    {{ with .Meta }}
      <p>Taken on: {{ .Date }}</p>
    {{ end }}
  {{ end }}
{{ end }}

Last updated: February 24, 2026 : content: Miscellaneous udpates for v0.157.0 (c3cb4363d)

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