Create PDF using Docomotion and host publicly

CreatePublicPDF.cls

public class createPublicPDF {
    
    private static String getMediaUrl(Id distributionId) {
        ContentDistribution distribution = [SELECT DistributionPublicUrl FROM ContentDistribution WHERE Id = :distributionId LIMIT 1];
        return distribution.DistributionPublicUrl;
    }

    public static Id createFaxPDF(Id recordId, Integer formId) {
    
        ContentVersion content = new ContentVersion();
        content.versionData = doco.RenderAPI.renderBlob(formId, recordId, doco.RenderAPI.Format.PDF);
        content.title = 'PDF';
        content.pathOnClient = '/PDF-file.pdf';
        content.FirstPublishLocationId = recordId;
        insert content;

        ContentDistribution distribution = new ContentDistribution(ContentVersionId = content.Id, Name = 'PublicShare');
        insert distribution;
        return distribution.Id;
    }
}