Extract images from document page Leave feedback
GroupDocs.Parser provides the functionality to extract images from document page by the getImages(int) method:
Iterable<PageImageArea> getImages(int pageIndex);
This method returns a collection of PageImageArea objects:
| Member | Description |
|---|---|
| getPage | The page that contains the text area. |
| getRectangle | The rectangular area on the page that contains the text area. |
| getFileType | The format of the image. |
| getRotation | The rotation angle of the image. |
| getImageStream | Returns the image stream. |
| 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. |
ImageOptions class is used to define the image format into which the image is converted. The following image formats are supported:
- Bmp
- Gif
- Jpeg
- Png
- WebP
Here are the steps to extract images from the document page:
- Instantiate Parser object for the initial document;
- Call isImages property to check if images extraction is supported for the document;
- Call getImages(int) method with the page index and obtain collection of PageImageArea objects;
- Iterate through the collection and get sizes, image types and image contents.
The following example shows how to extract images from a document page:
// Create an instance of Parser class
try (Parser parser = new Parser(Constants.SampleImagesPdf)) {
// Check if the document supports images extraction
if (!parser.getFeatures().isImages()) {
System.out.println("Document isn't supports images extraction.");
return;
}
// Get the document info
IDocumentInfo documentInfo = parser.getDocumentInfo();
// Check if the document has pages
if (documentInfo.getPageCount() == 0) {
System.out.println("Document hasn't pages.");
return;
}
// Iterate over pages
for (int pageIndex = 0; pageIndex < documentInfo.getPageCount(); pageIndex++) {
// Print a page number
System.out.println(String.format("Page %d/%d", pageIndex + 1, documentInfo.getPageCount()));
// Iterate over images
// We ignore null-checking as we have checked images extraction feature support earlier
for (PageImageArea image : parser.getImages(pageIndex)) {
// Print a rectangle and image type
System.out.println(String.format("R: %s, Text: %s", image.getRectangle(), image.getFileType()));
}
}
}
You may easily run the code above and see the feature in action in our GitHub examples:
Along with full featured Java 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 Free Online Document Parser App.
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