The conversion table
| From | To | Possible? | Signature kept? |
|---|---|---|---|
.asice | Original files | Yes, download | No |
.asice | Yes, extract or export | No | |
.asice | DOCX | Yes, if a DOCX is inside, or via app export | No |
.asice | ZIP of documents | Yes, "Download all" | No |
.asice | .zip by renaming | Yes | Still inside, but invisible to ZIP tools |
.bdoc | .asice | Not by converting | Signatures cannot be transferred |
.ddoc | .asics | Yes, by re-time-stamping with a dedicated utility | Kept, wrapped with a time stamp |
| PDF, DOCX | .asice | Yes, by signing | A new signature is created |
Why signatures do not convert
A signature is computed over exact bytes and stored in a format-specific structure. Moving it into a different container type would change what was signed. The only correct way to obtain a signature in another format is to sign again.
What "converters" on the web actually do
They unzip the container and return the files, sometimes rendering a document to PDF on the way. Nothing more. You can do the first part yourself in ASiCE Viewer without uploading anything, and the second with any office program.
Exports that make sense
- PDF for reading or printing. See ASiC-E to PDF.
- DOCX for reusing text. Useful when a contract becomes a template for the next one.
- XML for systems. E-invoices inside containers are often XML that software can import.
- Original file, byte for byte. For anything that must match the signed version exactly.
The ASiC-E Viewer app for Android offers these as export choices: PDF, DOCX, DOC, XML or the untouched original.
Going the other way
To turn a PDF or Word file into an .asice, you sign it. In DigiDoc4, add the files to a new container and sign with ID-card, Mobile-ID or Smart-ID. That is creation, not conversion, and it is the only way a real .asice comes into being.
A rule of thumb
If a tool promises to convert a signed container into another signed format with one click and no signing device, it is either describing extraction loosely or promising something that cannot be done.
Frequently asked questions
Can I convert .bdoc to .asice?
Not directly. They are different signature profiles. To have an .asice, the documents must be signed again in a new container.
Is there an offline ASiC-E converter?
Extraction needs no internet once the viewer page has loaded, and the Android app exports to PDF and Word fully offline.