Official PDFs are often 50MB+. Use or IlovePDF (be careful with sensitive data) to compress the file to <10MB for your tablet or phone.
After 15 years of substation design, I have found that no single PDF is "better" than a curated digital library. Here is my recommended folder structure for your hard drive: asce 113 pdf better
Do not settle for blurry, watermarked, non-searchable scans. A "better" PDF is not a free PDF鈥攊t is a working PDF. Invest the $150 and 90 minutes of setup time. The next time you are on a deadline, racing to pour a foundation before a lightning storm, you will thank yourself for having a standard that works for you, not against you. Official PDFs are often 50MB+