create attachment in apex to store encoded signature

Question

currently i'm displaying encoded signature in my apex page in this way :

<apex:image value="data:image;base64,{!Call.Signature__c}" />

Now i want this encoded signature to be saved in attachment object and then reference it in the visualforce page for a successful renderas pdf. please provide me detail technical solutions

Answer 1

Saving data as an attachment is basically as simple as:

Attachment record = new Attachment(ParentId = call.Id, Body = EncodingUtil.base64Decode(call.Signature__c), ContentType = 'image/jpeg');
insert record;

Note that you need to know the data type of the file more than just "image", so you'll probably want to store that in a separate field.

Once saved, you can use this answer to generate the appropriate URL for viewing/downloading/including the image.