Iam using Itext7 HTML2PDF 3.0.5 to convert my html to PDF. In my html I have an ordered List and after converting to HTML, the listis been overalpped by the content of the list.
Before i was using ITEXT XMLWorker, with i don't have this issue but i ahve other issues with tables. To fix them I moved to itext7 htmltopdf.
Could some one please help me with this issue?
Here is my sample code snippet
public static byte[] html2pdf(String htmlString) throws Exception {
Document pdfDoc = null;
ByteArrayOutputStream baos = null;
try {
baos = new ByteArrayOutputStream();
PdfWriter pdfWriter = new PdfWriter(baos);
PdfDocument pdfDocument = new PdfDocument(pdfWriter);
ConverterProperties converterProperties = new ConverterProperties();
HtmlConverter.convertToPdf(htmlString, pdfDocument, converterProperties);
pdfDocument.close();
return baos.toByteArray();
} catch (Exception exception) {
return null;
} finally {
try {
baos.close();
} catch (Exception ignored) {
}
}
}
sample1-generated pdf
sample2-generated pdf
sample1-Expected result
sample2-expected result
Related
Im using FOP version 2.1. I have a xsl fo template where i want to show images:
<xsl:variable name="ImagePath" select="defaultImageUrl"/>
<fo:external-graphic src="{$ImagePath}" content-width="scale-down-to-fit" width="100%"/>
Some images have a webadress like so:
https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Tulipa_biflora_UME.jpg/800px-Tulipa_biflora_UME.jpg
But other images come from my webserver from address like:
https://localhost:4200/api/download/image/?fixedPrice=true&productId=1329&fileId=1304
This responds to endpoint:
public ResponseEntity<byte[]> getFileAsResponseEntity(#RequestParam boolean fixedPrice, #RequestParam long productId, #RequestParam long fileId) throws IOException, SQLException {
HttpHeaders headers = new HttpHeaders();
FileDownload fileDownload = productService.getProductFile(productId, fileId, fixedPrice);
headers.setCacheControl(CacheControl.noCache().getHeaderValue());
String n = fileDownload.getFileName().toLowerCase();
if (fileDownload.getFileTypeEnum().equals(FileTypeEnum.PICTURE) && (n.contains(".jpeg") || n.contains("jpg"))) {
headers.setContentType(MediaType.IMAGE_JPEG);
} else if (fileDownload.getFileTypeEnum().equals(FileTypeEnum.PICTURE) && (n.contains(".png"))) {
headers.setContentType(MediaType.IMAGE_PNG);
} else if (fileDownload.getFileTypeEnum().equals(FileTypeEnum.PICTURE) && (n.contains(".gif"))) {
headers.setContentType(MediaType.IMAGE_GIF);
}
return new ResponseEntity<>(fileDownload.getByteArray(), headers, HttpStatus.OK);
}
Is there a way for fo:external-graphic to accept these 2 different urls? Or is there something additional i need to do for it to work, since currently when the image comes from the webserver, the the resulting pdf file does not have the image in it, only a white space.
EDIT:
Here is the code that should make the XML to XSL to PDF:
byte[] xsl = IOUtils.toByteArray(this.getClass().getResourceAsStream("/browserDocument.xsl"));
byte[] xml = getBrowserDocument(filter, clientId, representId, ecatMain, showImage, language);
InputStream inStr = this.getClass().getResourceAsStream("/fop.xml");
FopFactory fopFactory = FopFactory.newInstance(new java.net.URI("."), inStr);
ByteArrayOutputStream out = new ByteArrayOutputStream();
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out);
javax.xml.transform.Source xsltSrc = new StreamSource(new ByteArrayInputStream(xsl));
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer(xsltSrc);
String xmlStr = new String(xml, "UTF-8");
xmlStr = xmlStr.replaceAll("<", "<");
xmlStr = xmlStr.replaceAll(">", ">");
javax.xml.transform.Source src = new StreamSource(new ByteArrayInputStream(xmlStr.getBytes("UTF-8")));
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
return out.toByteArray();
I keep getting error message in the log files:
2019-01-30 16:07:48.300 ERROR 8424 --- [https-jsse-nio-8087-exec-3] org.apache.fop.apps.FOUserAgent : Image not found. URI: https://localhost:4200/api/efront/secure/download/product/image/?fixedPrice=false&productId=2823&fileId=1756. (No context info available)
It seems like it is calling the URL, but it is not getting the actual image from it. Maybe some issue with the image headers or the FOUseragent is getting blocked?
Well, implementing all above possible logic and seeing your code, I think URIResolver would help getting out of this as below:
Add it to your code : fopFactory.setURIResolver(new ResolveURIForWebServer());
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.URIResolver;
public class ResolveURIForWebServer implements URIResolver {
#Override
public Source resolve(String href, String baseURI) throws TransformerException {
Source source = null;
try {
// CONVERT IMAGE TO INPUTSTREAM
source = new StreamSource(InputStream);
} catch (Exception e) {
} finally {
}
return source;
}
}
Hope it helps.
I am using Thymeleaf with Spring boot, I am generating PDF file from Thymeleaf template using ITextRenderer, I have some Unicode (HEX) value to display currency symbols but it does't render Unicode characters
I have taken currency symbol Unicode from this URL Currency Unicode reference
Here below is my Java code to generate PDF from Thymeleaf template
String html = templateEngine.process("templates/Quote", context);
FileOutputStream os = null;
File parentDirectory=null;
try {
OutputStream outputStream = new FileOutputStream(quoteNumber+".pdf");
BufferedOutputStream bs= new BufferedOutputStream(outputStream);
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(html);
renderer.layout();
renderer.createPDF(bs,true);
outputStream.close();
Assert.notNull("greeting", "The templateName can not be null");
final Context ctx = new Context();
String processedHtml = templateEngine.process("greeting", ctx);
String fileName = UUID.randomUUID().toString();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
log.error("File not found >>> ",e);
} catch (IOException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
log.error("IO Exception >>> ",e);
}
finally {
if (os != null) {
try {
os.close();
} catch (IOException e) { /*ignore*/ }
}
}
Please help me to display currency symbols in generated PDF
I have tried to read IMB barcode from an image with the below code snippet, but it always return null. I have also tried with the IMB barcode images in the blackbox testing below, but doesn't work.
https://github.com/micjahn/ZXing.Net/tree/master/Source/test/data/blackbox/imb-1
private static void Decode()
{
Bitmap bitmap = new Bitmap(#"\07.png");
try
{
MemoryStream memoryStream = new MemoryStream();
bitmap.Save(memoryStream, ImageFormat.Bmp);
byte[] byteArray = memoryStream.GetBuffer();
ZXing.LuminanceSource source = new RGBLuminanceSource(byteArray, bitmap.Width, bitmap.Height);
var binarizer = new HybridBinarizer(source);
var binBitmap = new BinaryBitmap(binarizer);
IMBReader imbReader = new IMBReader();
Result str = imbReader.decode(binBitmap);
}
catch { }
}
I have solved this problem by using the below code snippet shared through the below link.
https://github.com/micjahn/ZXing.Net/issues/59
private static void Decode2()
{
var bitmap = new Bitmap(#"\07.png"); // make sure that the file exists at the root level
try
{
var imbReader = new BarcodeReader
{
Options =
{
PossibleFormats = new List<BarcodeFormat> {BarcodeFormat.IMB}
}
};
var result = imbReader.Decode(bitmap);
if (result != null)
System.Console.WriteLine(result.Text);
else
System.Console.WriteLine("nothing found");
}
catch (System.Exception exc)
{
System.Console.WriteLine(exc.ToString());
}
}
I am getting error width cannot be null , when passing image to inputstream.As i didn't find any alterante method . Basically i want to convert image to Pdf format in Xamarin.forms which supports UWP platform .
I am using xfinium pdf library for this.
public void ConvertJpegToPdf()
{
try
{
PdfFixedDocument document = new PdfFixedDocument();
Xfinium.Pdf.PdfPage page = document.Pages.Add();
page.Width = 800;
page.Height = 600;
var imageStream = GetStream();
PdfJpegImage jpeg = new PdfJpegImage(imageStream);//<-Error
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 24);
PdfBrush brush = new PdfBrush(PdfRgbColor.Red);
page.Graphics.DrawImage(jpeg, 0, 0, page.Width, page.Height);
Stream pdfStream = null;
document.Save(pdfStream);
}
catch (Exception ex)
{
throw ex;
}
}
protected Stream GetStream()
{
byte[] byteArray = Encoding.UTF8.GetBytes("http://david.qservicesit.com/images/3.jpg");
MemoryStream stream = new MemoryStream(byteArray);
return stream;
}
Please suggest some alternate to do this
byte[] byteArray = Encoding.UTF8.GetBytes("http://david.qservicesit.com/images/3.jpg");
You could not get image stream in this way. The method you have used can only get the Bytes of string. For your scenario, you could use http client to acquire image stream. Please refer to the following code:
public async Task<Stream> GetStream()
{
HttpClient client = new HttpClient();
HttpResponseMessage res = await client.GetAsync(new Uri("http://david.qservicesit.com/images/3.jpg"));
Stream stream = await res.Content.ReadAsStreamAsync();
return stream;
}
public async Task ConvertJpegToPdf()
{
try
{
PdfFixedDocument document = new PdfFixedDocument();
Xfinium.Pdf.PdfPage page = document.Pages.Add();
page.Width = 800;
page.Height = 600;
var imageStream = await GetStream();
PdfJpegImage jpeg = new PdfJpegImage(imageStream);
PdfStandardFont helvetica = new PdfStandardFont(PdfStandardFontFace.Helvetica, 24);
PdfBrush brush = new PdfBrush(PdfRgbColor.Red);
page.Graphics.DrawImage(jpeg, 0, 0, page.Width, page.Height);
Stream pdfStream = new MemoryStream();
document.Save(pdfStream);
}
catch (Exception ex)
{
throw ex;
}
}
when my user clicks a link i'd like to provide the standard open/save dialog for the pdf, instead of opening it in the browser...using the ffg code to generate the pdf:
Document document = new Document();
MemoryStream stream = new MemoryStream();
try
{
PdfWriter pdfWriter = PdfWriter.GetInstance(document, stream);
pdfWriter.CloseStream = false;
document.Open();
document.Add(new Paragraph("Hello World"));
}
catch (DocumentException de)
{
Console.Error.WriteLine(de.Message);
}
catch (IOException ioe)
{
Console.Error.WriteLine(ioe.Message);
}
document.Close();
stream.Flush();
stream.Position = 0;
return File(stream, "application/pdf");
Try providing a name to the file when returning it by using the third argument of the File method:
return File(stream, "application/pdf", "report.pdf");
Document document = new Document();
FileStream stream = new FileStream("report.pdf", FileMode.Create);
try
{
PdfWriter pdfWriter = PdfWriter.GetInstance(document, stream);
pdfWriter.CloseStream = false;
document.Open();
document.Add(new Paragraph("Hello World"));
}
catch (DocumentException de)
{
Console.Error.WriteLine(de.Message);
}
catch (IOException ioe)
{
Console.Error.WriteLine(ioe.Message);
}
document.Close();
stream.Flush();
stream.Position = 0;
return File(stream, "application/pdf");