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Pdf Pdf 签名签名有效性检查标记在杂耍阅读器上不可见
原标题:Pdf Signature Validity Check Mark Not Visible on Acrobat Reader

我正与 iText 签署一个 pdf 文件。 当我查看 Acrobat Reader 9 的文件时, 绿色的勾当没有出现在 Acrobat Reader 7 的签名矩形中。

请注意,我可以在页面上方看到有效性标记, 但我特别希望标记出现在签名矩形中。

有些人说,Acrobat第9版不再支持这一功能,但我看到一些数字签名的文件,9版有绿色检查标记。

因此, 是否需要用在它上面有特定的旗帜或层? 我已经使用了 secAcro6Layers 、 secableSignature、 setLayer2Text、 setLayer2Font、 setimage、 setimage 比例等 。

Any help is much appreciated. thanks

"https://i.sstatic.net/9vMgB.jpg" alt="在Acrobat Reader 9上看到的pdf文件绿检查标记的屏幕片段"/"

最佳回答

结果我只需要把Acro6Layers设为假, 而不是用设置图像方法设置任何图像... 而不是设置图像, 我使用设置符号图解方法...

pdfSignatureAppearance.setAcro6Layers(false);
pdfSignatureAppearance.setImage(null);
pdfSignatureAppearance.setSignatureGraphic(Image...);
问题回答
pdfSignatureAppearance.setAcro6Layers(true);
pdfSignatureAppearance.setImage(null); 

using itext-2.1.7.jar




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