PDF generation, branding and files

Troubleshoot Letter Manager PDF generation

Resolve missing files, broken images, unwritable storage or malformed content.

Audience: CRM staffPermission: Authenticated staff accountModule v1.0.0

Exact navigationAdmin Area → Letter Manager → create/resend test; server → uploads/letter_manager

Before you begin

Use an authorised account and confirm the customer, external recipient, template, letter or configuration is the intended one.
Follow the exact route shown above and verify the stored record, generated file and delivery evidence instead of relying on an alert alone.

What this guide covers

Resolve missing files, broken images, unwritable storage or malformed content. These instructions follow the inspected module’s live hook, route, controller, model, installer, PDF helper and view flow.

Exact step-by-step process

Confirm uploads/letter_manager is writable.
Confirm the company logo file exists if expected.
Test with simple subject and plain content.
Check PHP/TCPDF errors and module error logs through authorised diagnostics.
Open the generated path and verify file permissions.

Fields, choices and supported possibilities

Action scopeResolve missing files, broken images, unwritable storage or malformed content.

Module version1.0.0

Exact routeAdmin Area → Letter Manager → create/resend test; server → uploads/letter_manager

EvidenceVerify the history row, PDF, email metadata, open evidence, signature, public page, client view or postal fields produced by this flow.

Code-backed validations and workflow rules

PDF output is written before email is attempted.
A missing target email does not explain a missing PDF.
The supplied controller does not wrap the PDF generation sequence in a user-facing exception handler.

Expected result and verification

The requested letter, template, setting, file or tracking detail is created or updated through the supported route.
The history row, generated PDF, email/send metadata, public verification, signature evidence, client view or postal display agrees with the action.
Any warning, missing file or failed send is investigated rather than bypassed.

Security, privacy and operational checks

Apply least privilege and verify recipient identity before sending or exposing public links.
Protect PDFs, enclosures, signatures, verification URLs, email-open metadata, IP addresses and customer data under organisational policy.
Test configuration and deployment changes with controlled records before production-wide use.
Interpret email opens and e-signatures according to their documented technical limitations.