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Stefan Ziegler

Convert JPG to PDF: combine images and photos into one PDF

2026-11-132026-11-12 by Stefan Ziegler

Convert JPG, PNG and phone photos to PDF: many images in one PDF, exact A4 or Letter pages, margins, order, quality and file size. Online and offline.

Categories PDF24 Creator, PDF24 Online Tools

PDF bookmarks and table of contents: create and edit

2026-11-132026-11-12 by Stefan Ziegler

Add bookmarks to a PDF: from Word headings, one per file when merging, detected from headings, edited online or offline. Plus table of contents and fixes.

Categories PDF24 Creator, PDF24 Online Tools

Create and validate PDF/A: convert PDF to PDF/A with PDF24

2026-11-12 by Stefan Ziegler

Convert PDF to PDF/A: choose PDF/A-1b, 2b or 3b, save as PDF/A when printing, validate with veraPDF and fix common errors.

Categories PDF24 Creator, PDF24 Online Tools

PDF24 guides: all help pages for PDF24 Creator and online tools

2026-11-12 by Stefan Ziegler

All PDF24 guides at a glance: create, merge, edit, convert and compress PDFs, e-invoices, company setup and help with common problems.

Categories PDF24 Creator, PDF24 Online Tools

PDF24 Fax: send a fax online or from your PC, no fax machine

2026-11-12 by Stefan Ziegler

Send faxes without a fax machine with PDF24 Fax: in your browser or from PDF24 Creator. Number format, transmission report, receiving, limits, fixes.

Categories PDF24 Creator, PDF24 Online Tools

Add a watermark, stamp or letterhead to a PDF

2026-11-12 by Stefan Ziegler

Add a text or logo watermark, stamps and your letterhead to PDFs – online, offline and automatically when printing, plus fixes for common problems.

Categories PDF24 Creator, PDF24 Online Tools

Save email as PDF: Outlook, Thunderbird, Gmail, MSG files

2026-11-132026-11-12 by Stefan Ziegler

Save emails as PDF: print from Outlook, Thunderbird or webmail, convert MSG files, many emails at once, include attachments, fix common problems.

Categories PDF24 Creator, PDF24 Online Tools

Password protect a PDF: encrypt and set permissions

2026-11-132026-11-12 by Stefan Ziegler

Password protect a PDF online or offline: set an open password and permissions such as printing or copying correctly, AES-256, tips and fixes.

Categories PDF24 Creator, PDF24 Online Tools

Compress PDF: reduce PDF file size online and offline

2026-11-132026-11-12 by Stefan Ziegler

Make a PDF smaller for email and uploads: choose DPI and image quality, save small when printing, compress automatically, fix common problems.

Categories PDF24 Creator, PDF24 Online Tools

PDF OCR: recognize text and make PDFs searchable with PDF24

2026-11-132026-11-12 by Stefan Ziegler

Recognize text in scans and photos with OCR: online, offline with PDF24 OCR, while scanning, via hot folder and command line. Languages, options, fixes.

Categories PDF24 Creator, PDF24 Online Tools
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