使用Java将RTF转换为PDF [英] RTF to PDF in Java

问题描述

我们正在构建一个与其他系统部分交互的应用程序.我们正在从另一个系统中提取一些数据，这些数据作为RTF文档返回.但是我们必须防止用户编辑此文件，因此我们考虑将其与iText转换为PDF.代码段:

We are building an application which partially interacts with other system. We are pulling some data from the other system which is returned as RTF document. But we have to prevent users from editing this file, so we thought about converting it with iText into PDF. Code snippet:

        // moving the rtf data into input stream to be used in RTF parser
        ByteArrayInputStream rtfInputStream = new ByteArrayInputStream(rtfStream.toByteArray());

        // set headers
        resp.setHeader("Cache-Control", "no-store");
        resp.addHeader("Content-Type", "application/pdf");
        resp.addHeader("Content-Disposition", "inline; filename=Karta.pdf");
        resp.setStatus(HttpServletResponse.SC_OK);


        // pdf output stream
        ByteArrayOutputStream pdfStream = new ByteArrayOutputStream();

        Document pdfDoc = new Document();

        PdfWriter pdfWriter = PdfWriter.getInstance(pdfDoc, pdfStream);

        pdfDoc.open();

        RtfParser rtfParser = new RtfParser(null);

        rtfParser.convertRtfDocument(rtfInputStream, pdfDoc);
        pdfDoc.close();

        pdfWriter.close();

        resp.getOutputStream().write(pdfStream.toByteArray());

        rtfInputStream.close();
        pdfStream.close();
        is.close();

Pdf已创建，但是字体大小错误，样式错误并且编码错误.也许您有类似的问题，并且您已经解决了一些问题?也许有更好的解决方案?

Pdf is created but font sizes are wrong, styling is wrong and encoding is wrong. Maybe You had similar problems and You worked something out? Maybe there are better solutions?

推荐答案

Itext根据此 JODCoverter库.它利用了OpenOffice，过去我能够将数千个RTF文档转换为PDF.

Itext is abandoning RTF according to this post. One good solution I have used is JODCoverter Library. It leverages OpenOffice and I was able to convert several thousand RTF documents to PDF in the past.

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