diff --git a/File-Tools.md b/File-Tools.md
index f575dad20..7ba22d9ef 100644
--- a/File-Tools.md
+++ b/File-Tools.md
@@ -242,7 +242,7 @@
 
 ## ▷ PDF Tools
 
-* ⭐ **[Sejda](https://www.sejda.com/)**, [ILovePDF](https://www.ilovepdf.com/), [DigiPDF](https://digipdf.app/?lang=en_US), [PDF2Go](https://www.pdf2go.com/) or [SimplePDF](https://simplepdf.eu/) - Online PDF Toolkits
+* ⭐ **[Sejda](https://www.sejda.com/)**, [ILovePDF](https://www.ilovepdf.com/), [DigiPDF](https://digipdf.app/?lang=en_US), [PDF2Go](https://www.pdf2go.com/), [Stirling PDF](https://pdf.app.danian.co/ ) or [SimplePDF](https://simplepdf.eu/) - Online PDF Toolkits
 * ⭐ **[PDFGear](https://www.pdfgear.com/)**, **[PDF24](https://www.pdf24.org/)**, [xPDFReader](https://www.xpdfreader.com/), [PDF Arranger](https://github.com/pdfarranger/pdfarranger), [PrivatePDF](https://photown.github.io/private-pdf/), [PDFBox](https://pdfbox.apache.org/) or [OpenPDF](https://github.com/LibrePDF/OpenPDF) - Offline PDF Toolkits
 * [PDFGrep](https://pdfgrep.org/) - PDF Text Search
 * [View-only PDF](https://rentry.co/cm4b7) - Download View-Only PDF on GDrive