Difficult European files, explained plainly.
Short, accurate workflows for opening structured invoices, signed containers and certified email without sending business documents to an online converter.
Best app to open P7M files on Mac, iPhone or iPad?
Choose a P7M app for private document reading, invoice preview or signature verification. Compare EU Document Opener with signature-provider tools.
Read guide →P7M / CAdESHow to open a P7M file on iPhone, iPad or Mac
Open a P7M signed container privately on iPhone, iPad or Mac, inspect its certificate details and save the original document inside.
Read guide →FatturaPA / XMLHow to view a FatturaPA XML invoice on iPhone
Turn a FatturaPA XML invoice into a readable on-device view on iPhone or iPad, without uploading business data to an online converter.
Read guide →PEC / EMLHow to open PEC and EML attachments privately
Inspect a saved PEC or EML message, review its headers and open supported invoices or signed files attached to it on iPhone, iPad and Mac.
Read guide →UBL / PeppolHow to open a UBL or Peppol invoice on Apple devices
Read supported UBL 2.1 and Peppol BIS Billing invoice XML on iPhone, iPad or Mac with a private, on-device workflow.
Read guide →ASiC-E / ASiC-SHow to open ASiC-E and ASiC-S signature containers
Open supported ASiC-E and ASiC-S containers on iPhone, iPad or Mac, inspect their contents and safely extract the original files on-device.
Read guide →P7S / DETACHED CADESHow to open a P7S signature file and find its document
Inspect a P7S detached signature on iPhone, iPad or Mac and understand why the matching original document may also be required.
Read guide →XRECHNUNG / ZUGFERD / FACTUR-XHow to view XRechnung, ZUGFeRD and Factur-X invoices
Read supported German and Franco-German electronic invoice XML on iPhone, iPad or Mac and keep the authoritative source unchanged.
Read guide →FACTURAE / XADESHow to open a Facturae XML invoice on iPhone or Mac
Turn supported Spanish Facturae XML into a readable invoice view without uploading tax or business data to an online converter.
Read guide →RO E-FACTURA / RO_CIUSHow to view a RO e-Factura or RO_CIUS XML invoice
Read supported Romanian RO e-Factura and RO_CIUS invoice XML privately on iPhone, iPad or Mac while preserving the submitted source.
Read guide →UN/CEFACT CIIHow to open a CII invoice XML and make it readable
Read supported UN/CEFACT Cross Industry Invoice XML and EN 16931 profiles locally on iPhone, iPad or Mac.
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