How to Fix Unicode Issues in wkhtmltopdf PDFs
Missing glyphs, empty fields, or boxes in a wkhtmltopdf PDF? Trace the input encoding, font coverage, and rendering environment in that order.
How to Generate HTML5 and CSS3 PDFs in Python
Learn how to turn HTML5 and CSS3 into reliable PDFs with WeasyPrint, Playwright, and ReportLab, including code, assets, fonts, testing, and troubleshooting.
How to Fix Helvetica Not Working in wkhtmltopdf
When wkhtmltopdf ignores Helvetica, check the conversion host’s installed fonts, CSS usage, and fontconfig paths. Use this step-by-step guide to find and fix the cause.
How to Set Different Margins for Puppeteer-Generated PDFs
Set independent top, right, bottom and left margins in Puppeteer, understand print CSS, and troubleshoot page size, media and pagination issues.
How to Fix Blank Handlebars PDFs Generated With Puppeteer
Find why a Handlebars PDF is blank by inspecting generated HTML, print CSS, loading state, fonts, and Puppeteer PDF options.
How to Determine PDF Page Size When Targeting HTML Elements
Match HTML targets to the PDF.js viewport used for rendering, choose the right page box, and map coordinates correctly across PDF, canvas, and CSS.
How to Generate Large Puppeteer PDFs on AWS Without Errors
Generate large PDFs with Puppeteer on AWS by sizing Lambda for Chromium, packaging the browser deliberately, and moving long jobs to an asynchronous worker.
How to Add Page Numbers and Custom Headers to Merged PDFs with Puppeteer
Render print-ready PDFs with Puppeteer headers and page numbers, then merge files safely with pdf-lib and preserve global pagination.
How to Generate Puppeteer PDFs with Different Page Sizes
Choose a named paper format, custom dimensions, or CSS @page for Puppeteer PDFs. Learn how orientation, margins, print styles, and scaling affect the result.
How to Generate Accessible PDFs with Heading Levels Using Puppeteer
Generate tagged PDFs with semantic headings in Puppeteer, then inspect structure, reading order, and accessibility before publishing.
How to Generate PDFs With Playwright and DOM in AdonisJS
Generate production-ready PDFs from trusted HTML and DOM content in AdonisJS with Playwright, print CSS, layout options, delivery patterns, and troubleshooting.
Why Is My Data Not Showing in a Generated PDF?
Find missing PDF data by tracing the generator, input, template, export path, form fields, and viewer with this practical diagnostic guide.
How to Fix Puppeteer PDF Generation on a Deployed Server
Puppeteer works locally but fails in production? Follow this diagnostic path for browser installs, Linux libraries, sandboxes, Docker, and PDF options.
How to Support page-break-after: Avoid and target-counter in CSS PDFs
Keep headings with their content and add destination page numbers to a CSS-generated PDF table of contents. Learn the CSS, renderer requirements, and common fixes.
How to Wait for Login Before Generating PDFs With Playwright for Java
Wait for a reliable post-login signal and the report content before calling Playwright’s page.pdf() in Java. Includes runnable patterns, PDF options, and fixes for common failures.
How to Render HTML That Embeds Another PDF With the Object Tag
Embed a PDF with HTML’s object tag, provide useful fallback links, and troubleshoot browser, security, and mobile rendering issues.
How to Load Custom Fonts in Handlebars Templates for Puppeteer PDFs
Render Handlebars HTML with custom fonts in Puppeteer PDFs. Learn @font-face, font loading, print CSS, and how to fix missing fonts.
How to Fix Lines Between Transparent Elements in Puppeteer PDFs
Learn why hairline seams appear in Puppeteer PDFs and how to diagnose media styles, scaling, backgrounds, transparency, and viewer artifacts.