Apache-2.0
NextPDF Core
PDF 2.0 generation, HTML and CSS rendering, tagged structure, and PAdES B-B/B-T digital signatures.
Install NextPDF Core →PDF 2.0 / PHP 8.4
Build PDF 2.0 documents in PHP
Render HTML and CSS inside your PHP process, then sign, tag, or archive the same document.
Document pipeline
One process from template to final PDF
HTML and CSS enter the same in-process engine that signs, tags, and archives the output.
Standards targets
Structure, accessibility, and digital signatures
Each published standard has a defined engine scope and a validator path.
PDF 2.0
Native object model
NextPDF builds the file structure and cross-reference model around PDF 2.0.
PDF/UA-2
Tagged structure
Logical structure, document language, reading order, and figure alternative text target PDF/UA-2.
PAdES
Digital signatures
NextPDF Core and Pro produce PAdES B-B and B-T signatures. NextPDF Enterprise adds B-LT and B-LTA workflows.
NextPDF Core
The Apache-2.0 engine
NextPDF Core is open source under the Apache License 2.0.
PDF 2.0 generation
Create text, images, tables, vector graphics, forms, and document metadata.
HTML and CSS rendering
Render flexbox, gradients, custom properties, and embedded fonts inside PHP.
PAdES B-B
Apply a baseline PAdES B-B digital signature with CMS SignedData.
Tagged PDF
Emit logical structure, document language, and figure alternatives targeting PDF/UA-2.
NextPDF Connect
Expose deterministic PDF operations to agents over MCP, REST, and gRPC.
Strict analysis
Run the configured PHPStan Level 10 CI command over the strict-types codebase.
Editions
Add capability on the same engine
Core, Pro, and Enterprise share the in-process runtime and document pipeline.
One organization
NextPDF Pro
Adds templates, charts, redaction, DocMDP controls, and remote or AWS KMS signing on the same engine.
Explore NextPDF Pro →Regulated workflows
NextPDF Enterprise
Adds PAdES B-LT/B-LTA, HSM signing, PDF/A-4 output, e-invoicing, forensics, and agreement-specific support.
Explore NextPDF Enterprise →TCPDF migration
Keep the call sites. Change the import
The compatibility adapter preserves the surveyed TCPDF class and method surface. Most migrations start with a one-line import change.
TCPDF
use TCPDF;
$pdf = new TCPDF();
$pdf->AddPage();
$pdf->writeHTML($html);
$pdf->Output('out.pdf', 'F');NextPDF compatibility adapter
use NextPDF\Compat\Tcpdf\TCPDF;
$pdf = new TCPDF();
$pdf->AddPage();
$pdf->writeHTML($html);
$pdf->Output('out.pdf', 'F');Engine output
Download the documents
Each sample below includes the output file and its pinned SHA-256 digest.
e3c0d38bde94f8819b7de8706a3a12ef20dfb2d657cacbbee9228ef8c504da76Download PDF
5fd79832b584e7aecab5400e986331d88c4bebc7670d62c86df67574bd575ec1Download PDFVerification
Evidence for each evaluation path
Audit the source, inspect the organization certificate, and validate the published output.
01 / Source
Apache-2.0 core
NextPDF Core publishes its source under the Apache License 2.0.
Install NextPDF Core →02 / Organization
Certified ISMS
PATEON’s information security management system is independently certified to ISO/IEC 27001:2022.
Review the company evidence →03 / Output
Pinned samples
Every published sample carries a SHA-256 digest and a direct PDF download.
Open the Trust Center →14-day evaluation
Use every Enterprise feature for 14 days
The free trial starts at US$0 and produces watermarked evaluation output. Activate a licence to remove the watermark from new output.