Configure Apryse / PDFTron Local Fonts in Explorer

Configure Meridian Explorer to use Apryse (formerly PDFTron) fonts from a local folder. By default, Apryse downloads fonts the internet if they aren’t available in your local Meridian installation. This allows you to have access to all fonts Apryse provides, even if your environment restricts internet access.

1. In your web server, download the font package.

2. Extract the downloaded file to a subfolder, such as Fonts.

   We recommend the PDFTron subfolder, where the BCEnterprise IIS application is installed.

3. Create a virtual directory in IIS for the folder that contains the font files.

   This directory must be accessible from the web. Use the Anonymous Authentication to allow access.

4. In IIS, add the following file extensions:

   • .lzma with MIME type font/ttf

   • .brotli with MIME type font/ttf

5. If your environment uses CORS, set the HTTP header Access-Control-Allow-Origin to *.

6. In Windows Explorer, go to C:\ProgramData\BlueCieloECM\EnterpriseServices.

   The disk location might vary according to installation.

7. Open the PDFTronViewerSettings.dat file.

8. Add the PDFTronFontLocation string setting.

9. Set the setting to the web location of the font files.

   For example, if your fonts are in C:\inetpub\wwwroot\BCEnterprise\PDFTron\Fonts, the setting value is https://<MyExplorerWebServer>/BCEnterprise/PDFTron/Fonts.