What's Changed
* PPF-595: update optional parameters for draw stuff docs by chinapandaman in https://github.com/chinapandaman/PyPDFForm/pull/596
* PPF-597: add cache to pages property by chinapandaman in https://github.com/chinapandaman/PyPDFForm/pull/598
* PPF-599: release 1.4.22 by chinapandaman in https://github.com/chinapandaman/PyPDFForm/pull/600
**Full Changelog**: https://github.com/chinapandaman/PyPDFForm/compare/v1.4.21...v1.4.22