Convert UICollectionViewController to PDF File https://stackoverflow.com/questions/28018937/create-pdf-from-uicollectionview-full-content/41096306#41096306

PDFTools.swift

class PdfTools {
    func generatePdfFromCollectionView(_ collectionView: UICollectionView?, filename:String, success:(String) -> ()) {
        
        guard let collectionView = collectionView else {
            return
        }
        
        let pdfData = NSMutableData()
        
        let contentArea = CGRect(
            x: 0,
            y: 0,
            width: collectionView.frame.width,
            height: collectionView.frame.height
        )
        
        collectionView.frame = contentArea
        
        UIGraphicsBeginPDFContextToData(pdfData, contentArea, nil)
        
        UIGraphicsBeginPDFPage()
        collectionView.drawHierarchy(in: collectionView.bounds, afterScreenUpdates: true)
        UIGraphicsEndPDFContext()
        
        if let filepath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first {
            let fileFullPath = filepath + "/" + filename
            
            if pdfData.write(toFile: fileFullPath, atomically: true) {
                success(fileFullPath)
            }
        }
    }
}

usage.swift

let pdf = PdfTools()
pdf.generatePdfFromCollectionView(self.collectionView, filename: "myorder.pdf") { (filename) in
    print(filename) // prints file location
}