Archive and e-invoicing
Make documents archive-proof, save emails as PDF, get e-invoices out of PDFs and verify signatures.
6 tools, free and no sign-up needed
PDF/A for archiving Convert PDFs to PDF/A-2b: all fonts embedded, colors well defined, no JavaScript. The archive version for authorities, courts and accounting. Open 
Save email as PDF Turn a saved email (.eml) into a PDF with sender, date, text and a list of attachments. Open 
Extract email attachments Get every attachment out of an email file (.eml): invoices, PDFs, images, one by one or all at once. With sender, subject and date. Open 
Extract attachments and e-invoices from PDF Get embedded files out of a PDF. ZUGFeRD and Factur-X invoices are recognized too. Open 
Verify PDF signature Check who signed a PDF, when, and whether it was changed afterwards. Whether the certificate can be trusted is not checked. Open 