Knowledge Base/2.0 The Basics/2.4 Upload a PDF
2.4.4 Edit Title - Parser Defaults - Default Image DPI
Nathan Virtue
posted this on July 12, 2011 11:05 am
When you upload your PDF to the system for conversion, by default images are downsampled to 125DPI.
This downsampling ensures the best possible performance/speed for your digital edition, smaller DPI = smaller files = faster performance/experience.
Of course you may not be satisfied with the quality of the images at 125 DPI, so we allow you to select the default DPI at the title level.
To get there: EDIT TITLE>Advanced>Parser Defaults>Default Image DPI
The 3 options are:
- 125: Optimized for clarity and download speed
- 150: Better image clarity on zoom, slower to download
- 200: Best image clarity on zoom, slowest to download (not recommended)
NOTE: The DPI settings only apply to FUTURE uploads only. Any existing converted titles will not inherit these settings. Make sure to always review your issue within 12 hours of upload and delete if you have any image quality concerns. You could then increase the DPI on the title and reupload using the same Upload.
If you are past the 12 hour grace window and you still have concerns with image quality on some pages, you can increase the DPI and perform page replacements for up to 30% of your publications pages.