Yes, but only for public domain manuscripts. For example, a scanned Persian manuscript from 1850 can be downloaded from Archive.org without guilt. A 2015 English translation cannot.
Ask your local Islamic bookstore if they ship internationally. Many will sell a PDF version via email for a nominal fee ($5–$10). Supporting the publisher ensures more rare books get digitized. roohul kimiya pdf free download
Even if you find a genuine free PDF, it is often a poor-quality scan from the 1980s—missing pages, illegible handwriting in the margins, or completely out of order. You risk wasting hours deciphering gibberish. Yes, but only for public domain manuscripts