Question

我正在尝试将html转换为以svg图像作为背景图像的pdf。当使用selectPdf api（v2）进行转换时，它不会打印背景svg图像，但是如果我使用其在线测试页将相同的html转换为pdf，则它会打印背景图像。

这是我调用api的方式

 var options = new PdfOptions();
 options.html = html;
 options.key = _key;
 options.margin_bottom = 0;
 options.margin_top = 0;
 options.SetLandscape();

var client = new HttpClient();
var content = new StringContent(JsonConvert.SerializeObject(options, new JsonSerializerSettings
            {
                NullValueHandling = NullValueHandling.Ignore
            }));
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var result = await client.PostAsync("http://selectpdf.com/api2/convert/", content);

if (!result.IsSuccessStatusCode)
 {
    var msg = await result.Content.ReadAsStringAsync();
    throw new ApplicationException($"Failed to create pdf: {msg}");
 }

return await result.Content.ReadAsStreamAsync();

html代码发送

<!doctype html>
<html class="no-js" lang="en" dir="ltr">
<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width"> 
    <style>

#watermark {
     position: fixed; 
    background-image: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjx0ZXh0IHg9IjUlIiB5PSI1JSIgZm9udC1zaXplPSIzMCIgZmlsbD0icmVkIj5JIGxvdmUgU1ZHITwvdGV4dD48L3N2Zz4=);
    height: calc(100% + 50px);
    width: calc(100% + 50px);
    background-size: 270px 160px;
    background-repeat: repeat;
    opacity: 0.3;
    top: -50px;
    z-index:1;
    left: -50px;
}
</style>
</head>
<body>
<div class="grid-container" style="width: 1200px">
<div id="watermark"></div>
    <div class="grid-x grid-padding-x">
    <div class="large-4 cell">
        <h3 style="padding: 0px; margin: 0px; height: 100px; display:table-cell;vertical-align:middle;"><strong></strong></h3>
    </div>

    <div class="large-4 cell text-right">
        <h3 style="padding: 0px; margin: 0px; height: 100px; display:table-cell;vertical-align:middle;">  Specification</h3>
    </div>
    <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec quam felis vulputate eleifend tellus. Aenean leo ligula, porttitor eu, consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra quis, feugiat a, tellus. 
    </p>
</div>
</div>
</body>
</html>

Answer 1

使用base64编码的图像时，请将其他API参数skip_decoding设置为True。

SelectPDF不打印背景SVG图像

1 个答案: