# Getting Position and Size of TextFragment in PDF Documents

## Environment

| Version    | Product          | Author                                                                          |
| ---------- | ---------------- | ------------------------------------------------------------------------------- |
| 2024.3.806 | RadPdfProcessing | [Desislava Yordanova](https://www.telerik.com/blogs/author/desislava-yordanova) |

## Description

Determining the precise location and size of a [TextFragment](https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/model/textfragment) in a PDF document is essential for various document processing tasks. A `TextFragment`'s position is accessible through its [Position](https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/concepts/position) property, which returns a `MatrixPosition`. This article outlines how to translate the `MatrixPosition` into (x,y) coordinates and how to calculate the width and height of a `TextFragment`.

![TextFragment Position and Size](https://www.telerik.com/document-processing-libraries/documentation/assets/8641798eb0363ce3e160fd269235565a/text-fragment-position-and-size.png)

This KB article also answers the following questions:

* How can I find the exact location of a text in a PDF document?
* What is the method to determine the dimensions of a text segment within a PDF file?
* How to use the `MatrixPosition` for locating text in a PDF document?

## Solution

To obtain the (x,y) coordinates and the dimensions (width and height) of a `TextFragment`, follow these steps:

1. **Extract the (x,y) Coordinates:**

   Each `TextFragment` has a `Position` property of type [MatrixPosition](https://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/concepts/position#matrixposition). The `MatrixPosition` object includes a `Matrix` that exposes `OffsetX` and `OffsetY` properties. These properties represent the fragment's offset from the top-left corner of the PDF page.

   ```csharp
   float offsetX = textFragment.Position.Matrix.OffsetX;
   float offsetY = textFragment.Position.Matrix.OffsetY;
   ```

2. **Calculate the Size (Width and Height):**

   To determine the width and height of a `TextFragment`, use the measuring capability of the `Block` object. First, insert the `TextFragment` into a `Block`, and then use the `Measure` method to find its size.

   ```csharp
   private static Size GetFragmentSize(TextFragment textFragment)
   {
       Block block = new Block();
       block.Insert(textFragment);
       Size textFragmentSize = block.Measure();
       return textFragmentSize;
   }
   ```

By following these steps, you can accurately locate a `TextFragment` within a PDF document and determine its size for document processing and manipulation tasks.

## Notes

* The `OffsetX` and `OffsetY` values pinpoint the location relative to the top-left corner of the PDF page.
* The `Measure` method of the `Block` object provides the width and height of the contained `TextFragment`. Use this for precise layout and positioning operations.

## See Also

* [Position Concept in RadPdfProcessing](https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/concepts/position)
* [TextFragment in RadPdfProcessing](https://www.telerik.com/document-processing-libraries/documentation/libraries/radpdfprocessing/model/textfragment)
* [Extracting Text Within a Specific Rectangle in PDF Documents](https://www.telerik.com/document-processing-libraries/documentation/knowledge-base/extract-text-specific-rectangle-pdf-radpdfprocessing)