Comparing native pdf render in Chrome (open a pdf directly in Chrome) versus pdf rendered from syncfusion_flutter_pdfviewer, the second one has less resolution.
I've made some tests with the demo project, replacing "gis_succinctly.pdf" and "flutter_succinctly.pdf" with a my file, but the effect is also visible with the pdf included into the demo project.
You can seen the result into the attached file.
Attachment:
pdf_low_res_bd98f55.zip