电子邮件附件，PDF和CSV的问题 [英] Issues with email attachment, PDF and CSV

问题描述

我使用PDF生成，它生成PDF，查看使用 QLPreviewController ，所有工作正常，除了邮件转发，我有两个类型.pdf的附件和。 csv。我在发送电子邮件时遇到了以下问题。

I'm working with PDF generation,it generated the PDF, viewed using QLPreviewController, all worked fine except mail forwarding, I have two attachments of type .pdf and .csv. I have the following issues while emailing.

• 在发送电子邮件时有时没有附件



• 当pdf包含图像时，大小会非常大（一页的pdf，如果包含图像，则为10mb）

• sometimes no attachments while emailing

• pdf size will be very huge when pdf contains image(10 mb for one page pdf, if it contains image)

问题是当在设备中测试时， ...，
我来认识一些导出或导入UTI相关问题 here
因为我是一个初学者，我觉得很难理解它，我认为一些UTI我必须添加地方..任何人都可以帮助我找出问题和解决，请。提前感谢。

Problem is when testing in device,in simulator it all works fine..., I come to know some exporting or importing UTI associated issues here since I am a starter I feel difficult to understand it, I think some UTI's I have to add somewhere.. Can anyone please help me to identify the issue and solve, please. Thanks in advance.

推荐答案

1。附件问题

将mime类型设置为text / csv，而不是application / csv或image / csv。代码如下所示

set mime type as text/csv instead of application/csv or image/csv. code is as shown below

[mailComposer addAttachmentData:[NSData dataWithContentsOfFile:self.csvFilePath]
                               mimeType:@"text/csv" fileName:[NSString stringWithFormat:@"csvPage.csv" ]];

1。大小问题

我最后努力了很多..最后当以JPEG格式将图像写入PDF页面使用下面的代码，尺寸减少了十倍!!

I struggled a lot.. at last when wrote image in jpeg format to pdf page using below code, size got reduced ten times!!

UIImage *lowResImage = [UIImage imageWithData:UIImageJPEGRepresentation(plotImage, 0.02)];

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