Build Tools with open-source PHP SDKs To create, embed, search and verify numerous types of digital signatures. Document signing REST APIs....XLSM, ODS, OTS, CSV, TSV Presentation : PPT, PPTX, PPTM, PPS,...JPM, JPG, JPEG, ODG, PNG, PS, PSD, SVG, TIF, TIFF, WebP, WMF Portable...