Jasper Reports - Embedding Images - Emprise Corporation
Jasper Reports - Embedding Images
Table of Contents
About embedding images Convert your image to Base64 Adding a Base64 image into iReport Set the image in iReport URLs
About embedding images
In order to include images into Emprise Jasper Reports, the images need to be converted into Base64 images
One downside of this process is that iReport has a limit of 65535 unicode characters for an image, so any image used must be relatively small and optimized. I recommend sticking to logos only.
Convert your image to Base64
1. Create your image and make it a .gif 2. Go to this URL and choose upload image 3. Choose your file 4. Choose encode your image
In the Copy Code page, copy the Base64 String. To find out if the image string is 65535 or less, you can get a character count of the string by going to this URL
Adding a Base64 image into iReport
1. In iReport, right click on the Variables node in the Report Inspector tree 2. Choose Add Variable 3. In the Properties panel, add IMAGE_BYTES to the name property 4. The Variable Class should be of type java.lang.String 5. Add the base64 code string to the Initial Value Expression with the code inside double quotes 6. Set the Reset Type to Page
Set the image in iReport
To add the image into your report:
1. Click on window menu and then palette to launch the palette panel 2. Selec the image element and Drag a new image element to your iReport band and 3. iReport will prompt you to locate the image > choose Cancel 4. Select the image in iReport and in the Image Expression field, add
new java.io.StringBufferInputStream( new org.w3c.tools.codec.Base64Decoder($V{IMAGE_BYTES}).processString() ) 5. Make sure the Expression class is java.lang.String 6. Scale Image should be Retain Shape
URLs
How to embedd and SVG image in iReport Tip: embedding images in reports Embedding image in JRXML template Base64 images from xml datasource JasperReports XML Datasource with Inline Images JasperReports: image expression url JasperReport from XML Datasource with Inline Images
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