E-Invoice Tools
PDF to ZUGFeRD Go Overview
PDF to ZUGFeRD Golang SDK turns an ordinary PDF invoice into a compliant ZUGFeRD e-invoice in a single call. AI reads the invoice and extracts the complete EN 16931 data set - seller and buyer details, VAT identifiers, invoice lines, tax breakdown, payment terms, and monetary totals - then builds the Cross Industry Invoice (CII) XML and embeds it into a PDF/A-3 copy of your document. Scanned and photographed invoices work out of the box: pages without a text layer are read visually by the AI, so no separate OCR step is needed. The result is a hybrid electronic invoice that meets the German B2B e-invoicing requirements and opens in any ZUGFeRD 2.x capable system. Automate compliant e-invoice creation directly from your accounting, billing, or ERP workflow.
Lightning Fast Conversions
Process and convert files in seconds with our high-performance cloud infrastructure.
Accuracy Guaranteed
Our advanced algorithms ensure pixel-perfect and content-accurate file conversions.
Enterprise-Grade Security
ISO 27001, HIPAA, and GDPR compliant with encrypted file processing.
Global Infrastructure
Strategically located servers ensure low latency and high availability worldwide.
Developer Friendly
Comprehensive SDKs and clear documentation for quick and simple integration.
Time-Saving Automation
Automate repetitive document workflows and focus on what matters most.
Customizable Parameters
Fine-tune your automation with these powerful conversion options
File
File Supported formats: .pdfFile to be converted. Value can be URL or file content.
PageRange
String Default: 1-10Set page range or individual pages to convert. Example 1-10 or 1,2,5. Regardless of the range specified, a maximum of 10 pages will be processed per conversion.
Password
StringSets the password to open protected PDF.
AiMode
Collection Default: fastBalances conversion speed against extraction accuracy. Enhanced uses an advanced reasoning AI model that reads complex invoice layouts with enhanced accuracy. Fast responds quicker and suits simple, clearly structured invoices.
Values: enhanced fastReadMode
Collection Default: autoControls how PDF pages are read. Auto detects each page: pages with a text layer are read as exact text, scanned pages are read visually by the AI, so scanned and photographed invoices work without a separate OCR step. TextLayer trusts the embedded text only. Image renders every page as a picture, useful when the text layer is broken or incomplete.
Values: auto textLayer imageStoreFile
Bool Default: FalseWhen the StoreFile parameter is set to True, your converted file is written to ConvertAPI’s encrypted, temporary storage and made available via a time-limited secure download URL, valid for up to 3 hours. After this period, the file is permanently deleted.
When StoreFile is set to False, conversion happens entirely in-memory. The raw file bytes are streamed back in the API response without touching disk or external storage, ensuring maximum security and zero persistence so that only you can access the content.
Step-by-Step Guide
Easy PDF to ZUGFeRD integration using our Go SDK
1. ConvertAPI Go library install
ConvertAPI provides a library for Go programming language that allows you to perform a PDF to ZUGFeRD conversion with just a few lines of code. Convert PDF to ZUGFeRD documents using GO language with no effort at all!
Execute this command in your GOPATH:
go get github.com/ConvertAPI/convertapi-go
2. Authenticate your Go library
You can obtain your API Token by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your API Token from the account dashboard, and authenticate the ConvertAPI GO library like this:
# get your API Token here: https://www.convertapi.com/a/auth
config.Default = config.NewDefault("api_token")
3. Convert PDF to ZUGFeRD using Golang in no time!
Once you have your authentication in place, simply copy-paste this pdf to zugferd conversion code snippet into your Golang project:
Integrate within minutes
Easy PDF to ZUGFeRD automation using our simple Go SDK
Compatible With all Go Frameworks & Tools
Businesses trust us
Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.
"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."
"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."
"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"
Enterprise-Grade Security
We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.
Learn more about security