Extract images from document page area Leave feedback
On this page
GroupDocs.Parser provides the functionality to extract images from a document page area by the getImages(PageAreaOptions) and getImages(int, PageAreaOptions) methods:
parser.getImages(options) // returns Iterable<PageImageArea> or null
parser.getImages(pageIndex, options) // returns Iterable<PageImageArea> or null
These methods return a Java Iterable collection of PageImageArea objects:
| Member | Description |
|---|---|
getPage() | The page that contains the image. |
getRectangle() | The rectangular area on the page that contains the image. |
getFileType() | The format of the image. |
getRotation() | The rotation angle of the image. |
getImageStream() | Returns the image stream (java.io.InputStream). |
getImageStream(ImageOptions) | Returns the image stream in a different format. |
save(String) | Saves the image to the file. |
save(String, ImageOptions) | Saves the image to the file in a different format. |
The ImageOptions class is used to define the image format into which the image is converted. The following image formats (ImageFormat) are supported:
BmpGifJpegPngWebP
The PageAreaOptions parameter is used to customize the images extraction process. This class has the following members:
| Member | Description |
|---|---|
getRectangle() | The rectangular area that contains images. |
Here are the steps to extract images from the upper-right area of the pages:
- Instantiate the
Parserobject for the initial document; - Instantiate
PageAreaOptionswith the rectangular area; - Call the
getImages(PageAreaOptions)method and obtain the collection ofPageImageAreaobjects; - Check if the collection isn’t
null(images extraction is supported for the document); - Iterate through the collection and get sizes, image types and image contents.
The following example shows how to extract only images from the specified page area:
const groupdocs = require('@groupdocs/groupdocs.parser');
// Create an instance of Parser class
const parser = new groupdocs.Parser('images.pdf');
try {
// Create the options which are used for images extraction
const options = new groupdocs.PageAreaOptions(
new groupdocs.Rectangle(new groupdocs.Point(340, 150), new groupdocs.Size(300, 100)));
// Extract images from the page area
const images = parser.getImages(options);
// Check if images extraction is supported
if (images == null) {
console.log("Page images extraction isn't supported");
} else {
// Iterate over images
const it = images.iterator();
while (it.hasNext()) {
const image = it.next();
// Print a page index, rectangle and image type
console.log(`Page: ${image.getPage().getIndex()}, R: ${image.getRectangle()}, Type: ${image.getFileType()}`);
}
}
} finally {
parser.close();
}
process.exit(0);
The output for images.pdf:
Page: 0, R: (342.3999938964844; 233.83001708984375) (247.9499969482422; 164.8800048828125), Type: JPEG Image (.jpeg)
Page: 0, R: (342.3599853515625; 244.08001708984375) (248.0399932861328; 6.71999979019165), Type: JPEG Image (.jpeg)
Page: 1, R: (392.54998779296875; 183.04998779296875) (191.10000610351562; 126.3499984741211), Type: JPEG Image (.jpeg)
Along with the full-featured library we provide simple but powerful free Apps.
You are welcome to extract data from PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more with our Free Online Document Parser App.
Was this page helpful?
Any additional feedback you'd like to share with us?
Please tell us how we can improve this page.
Thank you for your feedback!
We value your opinion. Your feedback will help us improve our documentation.
