Understand the file before converting it.
Shortcuts are useful, but knowing what changes during conversion prevents lost quality, broken documents and privacy mistakes. These guides explain the decisions behind our tools.
DOCUMENTS · UPDATED 21 SEP 2026
How to open an e-invoice XML file
What UBL-TR contains, why XML looks like code and how to view it safely.
PDF · UPDATED 21 SEP 2026How to reduce PDF file size
Choose the right method for scanned, image-heavy and text-based documents.
IMAGES · UPDATED 21 SEP 2026WebP, JPG or PNG?
A practical format comparison for websites, photos, screenshots and archives.