Many free PDFs are photocopies of 19th-century books. The Sanskrit is illegible, the English is archaic ("thou shalt..."), and the diagrams are black blobs.
The original text has 1,250 verses divided into 36 chapters across 7 parts. Interestingly, sex positions are only discussed in Part 2. The other six parts cover: KamaSutra.pdf
Key Takeaway: If the KamaSutra.pdf you find is only 10 pages of cartoons showing a person folded into a pretzel, you are missing 99% of the philosophy. Many free PDFs are photocopies of 19th-century books
If you want to learn the Kama Sutra, a static KamaSutra.pdf might not be the best format. Because the original text relies on descriptions (e.g., "The man raises the woman like a lotus stalk"), modern technology offers better solutions: The original text has 1,250 verses divided into
Recommendation: Download the KamaSutra.pdf (Burton public domain) for reference, but watch a YouTube lecture on "Indian Erotic Literature" to understand what you are reading.