I am generating a pdf from multiple htmls. if any of the html consists img tag which refers to svg file like <img src="assets/6.svg" /> then in generated pdf doesnt have image included. If I keep jpg or png, then its included as part of generated pdf. Its happening only if I use below code but if I use HtmlConverter.convertToPdf() then svg files are showing fine in generated pdf.
PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new File(pdfFileName)));
pdfDocument.setDefaultPageSize(PageSize.A4);
Document document = new Document(pdfDocument);
document.setMargins(40, 40, 40, 40);
for (String html : htmlFileList) {
List<IElement> elements = HtmlConverter.convertToElements(new FileInputStream(html), converterProperties);
System.out.println(elements.size());
for (IElement element : elements) {
System.out.println(element.getClass().getName());
document.add((IBlockElement)element);
}
}
document.close();
I am seeing error like below when generating a pdf from html using above code.
Unable to retrieve image with given base URI
(file:/C:/Projects/pdf_conversion/download/) and
image source path
(file:/C:/Projects/pdf_conversion/download/assets/cpc/img/icons/x_dont_gray.svg)
I am using above code because page content should be flown from page to page (dont want to create one pdf for one html). Any workaround is highly appreciated on this.
Related
i am trying to set an image in to a razor page in MAUI Blazor.
In MAUI (only), there was the aproach, that you have a .svg image in the folder Resources/Images. MAUI then converts the .svg image in a .png image which you can use in the XAML file. like so:
Now i have the same picture in a MAUI Blazor app and i hoped that i can put my picture in the same way expect that i have to use the HTML style like so:
<img src="one_list2.png">
But this doesn't work at all. I tryed with or witout path, path with slashes, backslashes etc. nothing works.
Trying to put a .png image into the wwwroot folder works. But this isn't the goal. I found it very nice to put a svg image which is then converted into a png depending of its size. This way all pictures would be converted exactly in the perfect size you will need lossless.
Thanks
First, Add the image to Resources\Raw and set it to MauiAsset compilation type
Second, Check the project file to avoid setting the image in the other folder.
In razor component HTML:
<img src="#imageSource">
In the code part:
private string? imageSource;
protected override async Task OnInitializedAsync()
{
try
{
using var stream =
await FileSystem.OpenAppPackageFileAsync("testimage.png");
using var reader = new StreamReader(stream);
byte[] result;
using (var streamReader = new MemoryStream())
{
stream.CopyTo(streamReader);
result = streamReader.ToArray();
}
imageSource = Convert.ToBase64String(result);
imageSource = string.Format("data:image/png;base64,{0}", imageSource);
}
catch (Exception ex)
{
//error
}
}
More information you can refer to ASP.NET Core Blazor Hybrid static files.
I'm attempting to add form fields to an existing PDF in a .NET 7.0.0 app using iText7 7.2.4 on Mac and I cannot get multiline text fields to honor wrapping without doing a weird hack.
The following code illustrates the issue:
using iText.Forms;
using iText.Forms.Fields;
using iText.IO.Font.Constants;
using iText.Kernel.Colors;
using iText.Kernel.Font;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
// Create a new PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter("my_document.pdf"));
// Create a page and add it to the document
PdfPage page = pdf.AddNewPage();
// Create an AcroForm and add it to the document
PdfAcroForm form = PdfAcroForm.GetAcroForm(pdf, true);
// Create a multiline text field that should wrap but does not.
PdfTextFormField nonWrapping = PdfFormField.CreateText
(pdf,
new Rectangle(25, 727, 100, 100),
"multiline-field-without-wrapping",
String.Concat(Enumerable.Repeat("Hello World ", 10)),
PdfFontFactory.CreateFont(StandardFonts.HELVETICA),
9.0F);
nonWrapping.SetMultiline(true);
form.AddField(nonWrapping);
// Create a multiline text field that DOES wrap but
// only because we set a background color.
PdfTextFormField wrapping = PdfFormField.CreateText
(pdf,
new Rectangle(150, 727, 100, 100),
"multiline-field-with-wrapping",
String.Concat(Enumerable.Repeat("Hello World ", 10)),
PdfFontFactory.CreateFont(StandardFonts.HELVETICA),
9.0F);
wrapping.SetMultiline(true);
wrapping.SetBackgroundColor(new DeviceRgb(0.9F, 0.9F, 0.99F));
form.AddField(wrapping);
// Close the document
pdf.Close();
It will result in a PDF that looks like this in Preview:
The only way I can get wrapping to work is by including background color. I don't want to do this but it's the only thing that works.
If I could set the opacity of the background color, that might also be acceptable but so far, I've been unable to find anything in the code or docs that would support this.
$this->load->library('m_pdf');
$pdf = $this->m_pdf->load();
$pdf->SetTitle('My Doc');
$pdf->WriteHTML($html);
$pdf->Output($pdfFilePath, "F");
Used SetTitle() function of mpdf but by default it is using name of file : "Untitled Document - _Test_Company_10120.pdf"
Also set the <title></title> tag but no use.
You used $pdf->SetTitle('My Doc');
Set the title for the document. The title is displayed at the top of the Adobe Reader screen when viewing the PDF file, and is include in the document metadata, which can be seen when inspecting the document properties in Adobe Reader.
So, Try this :
$pdfFilePath = "directory/your_pdf_name.pdf";
$pdf->Output($pdfFilePath, "F");
if anybody konws this,please help me.how to give name to pdf.
i generated pdf using mpdf codeigniter. on click of a button the pdf wil be viewed. but how can give name for that pdf? it shows 1 on the top of the pdf.how can i give name to that pdf?
My controller
public function viewpdf($key,$option) {
if($option=='1')
{
$searchdata['fetchproduct']=$this->b2bproduct_model->fetch_productdata1($key);
}
if($option=='2')
{
$searchdata['fetchproduct']=$this->b2bproduct_model->fetch_productdata2($key);
}
if($option=='3')
{
$searchdata['fetchproduct']=$this->b2bproduct_model->fetch_productdata3($key);
}
$html=$this->load->view('moderator/pdf_data', $searchdata,true);
//this the the PDF filename that user will get to download
$pdfFilePath = "shany.pdf";
//load mPDF library
$this->load->library('m_pdf');
//generate the PDF from the given html
$this->m_pdf->pdf->WriteHTML($html);
//download it.
$this->m_pdf->pdf->Output($pdfFilePath, "I");
}
Use this code.
$mpdf=new mPDF();
$mpdf->SetTitle('My Title');
$mpdf->WriteHTML('<p>Hallo World</p>');
$mpdf->Output('filename.pdf');
Set the title for the document. The title is displayed at the top of the Adobe Reader screen when viewing the PDF file
Use code as bellow
public function mypdf() {
$this->load->library('pdf');
$pdf = $this->pdf->load();
$html=$this->load->view('welcome_message',null,true);
$pdf->WriteHTML($html);
// write the HTML into the PDF
$output = 'your_given_name.pdf'; //You can give a name of your generated pdf file or you can create it auto on timestamp by using $output = time().'.pdf'.
$pdf->Output("$output", 'I');
}
If you send data to view page then replace the variable with null in line 4.
For more details please see the tutorial from here.
If you are interested on DOMPDF please see from here.
I use Helvetica font and 14 px size for text. The problem is that if a page does not have any image on it the text is very clear, but in a page with at least 1 image the text is getting a little bold. You can see what I mean in images below:
* Without image on page
* With image on page
The correct font is the one that appear in picture #1. How to make all pages have the same font even if the page contains an image or not?
Thanks.
Sample code:
Document document = new Document(PageSize.LETTER);
document.SetMargins(docMargin, docMargin, docMargin, 25);
writer = PdfWriter.GetInstance(document, new FileStream(filename, FileMode.Create));
document.Open();
Font defaultFont = FontFactory.GetFont("Helvetica", 7.8, Font.NORMAL, new Color(75, 75, 75));
document.Add(new Paragraph("Lorem ipsum lorem ipsum lorem ipsum", defaultFont));
document.Add(Chunk.NEWLINE);
Image img = Image.GetInstance("my png image path");
document.Add(img);
document.Close();
I was finally able to reproduce your problem. The first PNG that I tested with which didn't reproduce your problem I created from Photoshop and used the Save For Web command. The second PNG that I tested and was able to reproduce your problem I created from MSPAINT.EXE. I tried various combinations within Save For Web and none of them have the same problem as Paint.
According to this thread from the official iText mailing list it appears to be something about the color profile of the image.
What are you seeing is the impact of newly placed transparency into a
PDF that had not previously contained it, when consideration isn't
given for the blending colorspace of the final output document.
You have an RGB document that upon adding transparency is forced into
CMYK due to lack of explicit blending space. If you were to specify
RGB as your explicit blending space at the same time you added your
transparency, all would be well.
One thing they recommend is setting the following property on your PdfWriter before adding anything:
writer.RgbTransparencyBlending = true;
When I do it I still see a very minor shift but no where near as pronounced as without it.
This isn't an answer, I just need to be able to post code.
I'm unable to reproduce your results but if I were to guess it has something to do with your PDF renderer. You can confirm this by zooming in on the text, does it look the same when zoomed in? If so, that's your renderer trying to apply visual hints to a print document. If not, can you post a simplified version of your code that does this? Does this do this for all images or just one specific one? How are you creating your text, with Paragraphs, Tables, HTML parsing or something else? What version of iTextSharp are you using?
Below is a full working WinForms C# 2010 targeting iTextSharp 5.1.2.0 that creates a two page PDF. The first page has just text and the second page has text followed by an image loaded from the desktop. On my machine, using Adobe Acrobat Pro 9.1.3 I don't see any difference in fonts when I view it on screen.
using System;
using System.IO;
using System.Windows.Forms;
using iTextSharp.text;
using iTextSharp.text.pdf;
namespace WindowsFormsApplication1 {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e) {
string pdfFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Test.pdf");
string imgFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Test.png");
using (FileStream fs = new FileStream(pdfFile, FileMode.Create, FileAccess.Write, FileShare.None)) {
using (Document doc = new Document(PageSize.LETTER)) {
using (PdfWriter writer = PdfWriter.GetInstance(doc, fs)) {
doc.Open();
BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1250, BaseFont.NOT_EMBEDDED);
iTextSharp.text.Font f = new iTextSharp.text.Font(bf, 14);
doc.NewPage();
doc.Add(new Paragraph("This is a test", f));
doc.NewPage();
doc.Add(new Paragraph("This is a test", f));
iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(imgFile);
img.ScaleAbsolute(100, 100);
doc.Add(img);
doc.Close();
}
}
}
this.Close();
}
}
}