can we use this to compile tiff from multiple sources?

[alexgman]

I have files like png, gif, jpeg, pdf, and I need to be able to compile all of these into 1 tiff file. Can we use this library to do that?

[johnthad]

No. If you look on the Note on the README.md, you'll see that the create functions of LibTIFF are not supported.

photopea/UTIF.js says it supports encoding TIFF, but I've not tried it.

Using Java, I've merged various image types into PDF with Apache PDFBox. If you must have TIFF, you can try jai-imageio/jai-imageio-core, but again this if Java, not JavaScript (and my only experience with it is saving 1-bit images as TIFF with CCITT T.6 compression).