Documents
PDF Generation
Tamper-proof signed PDFs from WordPress
Upload any PDF, place fields, and generate finalized documents with digital certificates, flattening, watermarks and an appended Certificate of Completion.
Upload · flatten · X.509 embed · watermark · completion certificate
Professional PDF output end to end
From multi-page upload to downloadable signed PDF, WPsigner handles processing on your WordPress server.
Upload and process
Upload any PDF and prepare signature fields in seconds — including multi-page documents.
Tamper-proof finish
Flatten signed fields into permanent content and embed X.509 certificates for verification.
Completion evidence
Append a Certificate of Completion with the full audit trail and document hash.
How PDF generation works
Prepare the file, collect signatures, then produce a finalized, downloadable PDF for all parties.
- 1
Upload the PDF
Import a single- or multi-page PDF and place fields on any page.
- 2
Collect signatures
Signers complete fields; optional watermarks mark drafts or confidential copies.
- 3
Embed and flatten
Apply digital certificate data and flatten interactive fields into static, tamper-proof content.
- 4
Download the final PDF
All parties get the signed PDF plus Certificate of Completion with audit details.
Certificates, watermarks and high-res rendering
Embed AATL-compatible X.509 certificates for Adobe verification, add DRAFT or CONFIDENTIAL watermarks, and render signatures at high resolution at any zoom level.
- Multi-page field placement
- PDF flattening after signing
- X.509 digital certificate embedding
- Auto-generated Certificate of Completion
- Instant signed PDF download for all parties
PDF capabilities
- PDF upload and processing
- Multi-page document support
- PDF flattening
- Digital certificate embedding
- Certificate of Completion
- Signed PDF download
- Custom watermarking
- High-resolution signature rendering
Built for production document output
Client deliverables
Send polished signed PDFs with completion certificates attached.
Confidential packs
Watermark drafts or restricted documents before or during review.
Long contracts
Place fields across multi-page agreements without losing quality.
Audit-ready archives
Keep flattened PDFs with embedded certificates and audit hashes.
Frequently asked questions
What PDF features does WPsigner support?
PDF upload, multi-page processing, drag-and-drop field placement, X.509 certificate embedding, flattening, watermarking and automatic Certificate of Completion. The signed PDF includes signatures, form data and an audit trail.
What is PDF flattening?
Flattening converts interactive form fields into static content permanently embedded in the PDF. That prevents anyone from modifying signed fields after completion — making the document tamper-proof.
Can I embed digital certificates in PDFs?
Yes. WPsigner can embed X.509 certificates compatible with Adobe's Approved Trust List (AATL), so signatures verify in Adobe Acrobat Reader without extra software.
What is a Certificate of Completion?
An automatically generated PDF page appended to every signed document. It contains the audit trail — signer names, emails, IPs, timestamps and the document SHA-256 hash — as a permanent record of the signing process.
Can I watermark documents?
Yes. Add custom watermarks such as DRAFT or CONFIDENTIAL to documents as needed.
Where are signed PDFs stored?
On your WordPress server with WPsigner — downloadable by parties and retained under your hosting and retention policies.
Professional PDF signing
Generate tamper-proof signed PDFs with certificates, audit trails and flattening — from your WordPress site.
Stop paying per envelope
Choose an annual or lifetime license with unlimited documents and no per-envelope fees. Keep control of your data and signing workflows.