cesarvr
commented
4 years ago Hey @michaelschneiderdaimler ,
It's going to be difficult to achieve accuracy at byte level between the same PDF, because the PDF API (used by the browser behind the scenes) adds arbitrary metadata values (like dates, prefixes, etc) in the PDF script code that internally defines the final document. If you transform this base64 into a PDF script you will find that objects in the PDF script are not even (sometimes) defined in the same order, which explains the difference in Base64 results.
On the other hand the visual accuracy will be there because that's the purpose of PDF technology.
Example:
Block of text defined internally in different order with arbitrary prefixes:
Visual representation of the files:
Hope it helps.
michaelschneiderdaimler
Hi,
we're using your plugin in an iOS app. We observed that if pass the same input to the plugin several times, we get different result base64 strings. The generated PDF looks consistent, but we are wondering what the cause for this behaviour could be. We want to generate some critical packaging labels, so we need to be sure that the plugin behaves somewhat consistently - any idea what is going on? I didn't find anything by digging through the code... Input:
pdf.fromData('<style type="text/css">.clara {color: blue; font-weight: lighter; font-family: Arial, Helvetica}</style><html><div class="clara">Hello from Stuttgart!</div><div>Hallo aus Deutschland ... </div></html>', { documentSize: 'A4', type: 'base64'}).then(function(res) { console.log(res) })Result: pdf-result-1.txt pdf-result-2.txt