ImageMetadataReader (metadata-extractor - Javadoc - Extracts Exif, IPTC, XMP, ICC and other metadata from image files)

java.lang.Object
- com.drew.imaging.ImageMetadataReader

```
public class ImageMetadataReader
extends Object
```
Obtains Metadata from all supported file formats.
This class a lightweight wrapper around specific file type processors:
- JpegMetadataReader for JPEG files
- TiffMetadataReader for TIFF and (most) RAW files
- PsdMetadataReader for Photoshop files
- PngMetadataReader for BMP files
- BmpMetadataReader for BMP files
- GifMetadataReader for GIF files
If you know the file type you're working with, you may use one of the above processors directly. For most scenarios it is simpler, more convenient and more robust to use this class.
FileTypeDetector is used to determine the provided image's file type, and therefore the appropriate metadata reader to use.
Author:

Drew Noakes https://drewnoakes.com

Method Summary

Methods
Modifier and Type	Method and Description
`static void`	`main(String[] args)` An application entry point.
`static Metadata`	`readMetadata(File file)` Reads `Metadata` from a `File` object.
`static Metadata`	`readMetadata(InputStream inputStream)` Reads metadata from an `InputStream`.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - readMetadata
```
public static Metadata readMetadata(InputStream inputStream)
                             throws ImageProcessingException,
                                    IOException
```
    Reads metadata from an InputStream.
    The file type is determined by inspecting the leading bytes of the stream, and parsing of the file is delegated to one of:
    - JpegMetadataReader for JPEG files
    - TiffMetadataReader for TIFF and (most) RAW files
    - PsdMetadataReader for Photoshop files
    - PngMetadataReader for PNG files
    - BmpMetadataReader for BMP files
    - GifMetadataReader for GIF files
    Parameters:
    inputStream - a stream from which the file data may be read. The stream must be positioned at the beginning of the file's data.
    
    Returns:
    a populated Metadata object containing directories of tags with values and any processing errors.
    
    Throws:
    
    ImageProcessingException - if the file type is unknown, or for general processing errors.
    
    IOException
  - readMetadata
```
public static Metadata readMetadata(File file)
                             throws ImageProcessingException,
                                    IOException
```
    Reads Metadata from a File object.
    The file type is determined by inspecting the leading bytes of the stream, and parsing of the file is delegated to one of:
    - JpegMetadataReader for JPEG files
    - TiffMetadataReader for TIFF and (most) RAW files
    - PsdMetadataReader for Photoshop files
    - PngMetadataReader for PNG files
    - BmpMetadataReader for BMP files
    - GifMetadataReader for GIF files
    Parameters:
    file - a file from which the image data may be read.
    
    Returns:
    a populated Metadata object containing directories of tags with values and any processing errors.
    
    Throws:
    
    ImageProcessingException - for general processing errors.
    
    IOException
  - main
```
public static void main(String[] args)
                 throws MetadataException,
                        IOException
```
    An application entry point. Takes the name of one or more files as arguments and prints the contents of all metadata directories to System.out.
    If -thumb is passed, then any thumbnail data will be written to a file with name of the input file having .thumb.jpg appended.
    If -markdown is passed, then output will be in markdown format.
    If -hex is passed, then the ID of each tag will be displayed in hexadecimal.
    
    Parameters:
    args - the command line arguments
    
    Throws:
    
    MetadataException
    
    IOException

Class ImageMetadataReader

Method Summary

Methods inherited from class java.lang.Object

Method Detail

readMetadata

readMetadata

main