public String generateOperationsReport(List<Operation> operations, Account account) throws PDFNotGeneratedException {
        try {
            Date date = new Date();
            PDDocument document = new PDDocument();
            PDPage page = new PDPage();
            document.addPage(page);
            User user = account.getOwner();
            PDFont font = PDType1Font.COURIER_BOLD;

            PDPageContentStream contentStream = new PDPageContentStream(document, page);
            contentStream.beginText();
            contentStream.setFont(font, 12);
            contentStream.moveTextPositionByAmount(10, 760);
            contentStream.drawString(user.getName() + " " + user.getLastName());
            contentStream.moveTextPositionByAmount(0, -10);
            contentStream.drawString(account.getAccountNr());
            contentStream.moveTextPositionByAmount(0, -10);
            contentStream.drawString(account.getCardNr());
            contentStream.moveTextPositionByAmount(0, -10);
            contentStream.drawString(date.toString());

            for (int ii = 0; ii < operations.size(); ii++) {
                if ((ii % 15) == 0) {
                    contentStream.endText();
                    contentStream.close();
                    page = new PDPage();
                    document.addPage(page);
                    contentStream = new PDPageContentStream(document, page);
                    contentStream.beginText();
                    contentStream.setFont(font, 12);
                    contentStream.moveTextPositionByAmount(10, 750);
                }
                contentStream.drawString(operations.get(ii).getName());
                contentStream.moveTextPositionByAmount(250, 0);
                long cash = operations.get(ii).getCash();
                contentStream.drawString(cashConverter.convertToString(cash));
                contentStream.moveTextPositionByAmount(200, 0);
                if (operations.get(ii).getAccountTo() != null) {
                    contentStream.drawString(operations.get(ii).getAccountTo().getAccountNr());
                }
                contentStream.moveTextPositionByAmount(-450, -10);
                contentStream.drawString(operations.get(ii).getType().getName());
                contentStream.moveTextPositionByAmount(200, 0);
                contentStream.drawString(operations.get(ii).getCreationDate().toString());
                contentStream.moveTextPositionByAmount(-200, -20);
            }
            contentStream.endText();
            contentStream.close();
            String filename = "ATMReport_" + account.getAccountNr() + ".pdf";

            document.save(filename);
            document.close();
            return filename;
        } catch (IOException | COSVisitorException ex) {
            Logger.getLogger(PDFGenerator.class.getName()).log(Level.SEVERE, null, ex);
            throw new PDFNotGeneratedException();
        }

    }