ABCpdf，在“模板"中呈现 HTML:如何添加边距? [英] ABCpdf, render an HTML within a "template": How to add margin?

问题描述

我正在尝试在预定义的 PDF 模板内(例如在框架内)呈现 HTML.模板/框架应该到达边缘.但是 HTML 不应该这样做.所以我只需要 HTML 的某种边距.到目前为止，这是我的代码:

I'm trying to render an HTML within a predefined PDF-template (e.g. within a frame.) The template/frame should reach the edges. But the HTML shouldn't do that. So I need some kind of margin for the HTML only. Here is my code so far:

var doc = new Doc();
doc.MediaBox.String = "A4";
doc.Rect.String = doc.MediaBox.String;

var id = doc.AddImageUrl(url.ToString());

doc.AddImageDoc("template.pdf", 1, doc.MediaBox);

while (doc.Chainable(id))
{
    doc.Page = doc.AddPage();

    id = doc.AddImageToChain(id);

    doc.AddImageDoc("template.pdf", 1, doc.MediaBox);
}

for (var i = 1; i <= doc.PageCount; i++)
{
    doc.PageNumber = i;
    doc.Flatten();
}

我明白了，有可能将一个 Rect 传递给 #AddImageDoc.但是对于 #AddImageUrl，我没有这个选项.

I see, that there is a possibility to pass a Rect to #AddImageDoc. But I don't have this option for #AddImageUrl.

推荐答案

以下是我解决问题的方法:

Here is how I could solve the problem:

首先，我设置doc.Rect的位置和边距:

First, I set the position and margins of the doc.Rect:

doc.Rect.Position(15, 15);
doc.Rect.Width = pageWidth - 2*15;
doc.Rect.Height = pageHeight - 2*15;

然后我用解析后的 URL 中的图像填充文档:

Then I filled the doc with the images from the parsed URL:

var id = doc.AddImageUrl(url.ToString());

while (doc.Chainable(id))
{
    doc.Page = doc.AddPage();
    id = doc.AddImageToChain(id);
}

此后，我将 doc.Rect 重置为实际纸张的大小(在 ma 情况下:A4):

After this, I reset the doc.Rect to the size of the actual paper (in ma case: A4):

doc.Rect.String = "A4";

现在我可以遍历所有页面并将模板添加到它们中:

Now I can loop over all pages and add the template to them:

for (var i = 1; i <= doc.PageCount; i++)
{
    doc.PageNumber = i;
    doc.AddImageDoc(template, 1, doc.Rect);
    doc.Flatten();
}

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