# Attach PDF Underlay Dialog Box [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [P](Help%20System/GSTARCAD/2027/Commands/P/(P).md) **Function Description:** Names, locates and defines the insertion point, scale and rotation of attached PDF underlays. ![](Help%20System/GSTARCAD/2027/assets/58d977ff47d6028dbd292385399ee507f42698f896471dda4aca21d2c4b48a20.jpg) **Dialog Box Options:** ## Name Identifies the PDF file you have selected to attach. ## Browse Opens the Select Reference File dialog box. ## Select one or more pages from PDF file Displays all of the pages that are found in the PDF file. If the PDF file only contains a single page, that page is listed. You can select multiple pages by holding Shift or Ctrl and selecting the pages to attach. ## Path Type Selects the Full path, Relative path and No path to the PDF file. The default path type is Relative path. ## Insertion Point Specifies the insertion point for the selected PDF file. Specify On-screen is the default. The default insertion point is 0,0,0. - **Specify On-screen:** Directs input at the Command  prompt or the pointing device. If Specify On-screen is cleared, enter the insertion point in X,Y and Z. - **X:** Sets the X coordinate value. - **Y:** Sets the Y coordinate value. - **Z:** Sets the Z coordinate value. ## Scale Specifies the scale factor of the selected PDF underlay. - **Specify On-screen:** Allows you to input at the Command prompt or the pointing device. If Specify On-screen is cleared, enter a value for the scale factor. The default scale factor is 1. - **Scale Factor Field:** Enters a value for the scale factor. The default scale factor is 1. ## Rotation Specifies the rotation angle of the selected PDF underlay. - **Specify On-screen:** If Specify On-screen is selected, you may wait until you exit the dialog box to rotate the object with your pointing device or enter a rotation angle value at the Command prompt. - **Angle:** If Specify On-screen is cleared, enter the rotation angle value in the dialog box. The default rotation angle is 0. ## Show Details/Hide Details Displays the DGN file path. - **Location:** Displays the path where the PDF file is located. - **Saved Path:** Displays the path that is saved with the drawing when the PDF file is attached. The path is dependent upon the Path Type setting. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences_P/PDFATTACH_DIA.html) · © Gstarsoft Co., Ltd.