Extract tables from document page Leave feedback
GroupDocs.Parser provides the functionality to extract tables from document page by the getTable(int, PageTableAreaOptions) method:
Iterable<PageTableArea> getTables(int pageIndex, PageTableAreaOptions options);
This method returns a collection of PageTableArea object:
| Member | Description |
|---|---|
| getRectangle | The rectangular area that bounds text area. |
| getPage | The page information (page index and page size) |
| getRowCount | The total number of the table rows. |
| getColumnCount | The total number of the table columns. |
| getCell(int, int) | The table cell by row and column indexes. |
| getRowHeight(int) | The the row height. |
| getColumnWidth(int) | Returns the column width. |
getTables(int, PageTableAreaOptions) accepts PageTableAreaOption object that contains TemplateTableLayout object with table layout (see this article for more details).
Here are the steps to extract tables from the whole document:
- Instantiate Parser object for the initial document;
- Check if the document supports table extraction;
- Call getTables(int, PageTableAreaOptions) method with the page index and obtain collection of PageTableArea objects;
- Iterate through the collection and print table cells.
The following example shows how to extract tables from the whole document:
// Create an instance of Parser class
try (Parser parser = new Parser(Constants.SampleInvoicePagesPdf)) {
// Check if the document supports table extraction
if (!parser.getFeatures().isTables()) {
System.out.println("Document isn't supports tables extraction.");
return;
}
// Create the layout of tables
TemplateTableLayout layout = new TemplateTableLayout(
java.util.Arrays.asList(new Double[]{50.0, 95.0, 275.0, 415.0, 485.0, 545.0}),
java.util.Arrays.asList(new Double[]{325.0, 340.0, 365.0, 395.0}));
// Create the options for table extraction
PageTableAreaOptions options = new PageTableAreaOptions(layout);
// 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()));
// Extract tables from the document page
Iterable<PageTableArea> tables = parser.getTables(pageIndex, options);
// Iterate over tables
for (PageTableArea t : tables) {
// Iterate over rows
for (int row = 0; row < t.getRowCount(); row++) {
// Iterate over columns
for (int column = 0; column < t.getColumnCount(); column++) {
// Get the table cell
PageTableAreaCell cell = t.getCell(row, column);
if (cell != null) {
// Print the table cell text
System.out.print(cell.getText());
System.out.print(" | ");
}
}
System.out.println();
}
System.out.println();
}
}
}
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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