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PlanckConvert Help Guides

Learn how to process HEIC images and secure PDF documents completely offline in your browser.

PDF & Document Management Guides
Security / PDF

How to Merge PDF Files Safely Without Server Uploads

Discover the hidden security risks of standard online PDF utilities and how serverless client-side merging protects your sensitive data.

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Encryption / PDF

How to Secure Your PDF Documents: Passwords & Permissions

Learn the difference between user and owner passwords and how to encrypt your PDF files using free, built-in tools on Windows and Mac.

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Coming Soon

The Ultimate Guide to Reordering PDF Pages

A step-by-step guide to reordering, rotating, and managing pages in a PDF document using local browser mechanics.

In Production
Coming Soon

How to Extract Specific Pages from a Large PDF

How to split a heavy PDF file and save only the necessary pages without using cloud resources.

In Production
HEIC & Image Conversion Guides
General / HEIC

What is an HEIC File? The Complete Guide for Beginners

Understanding Apple's default image container format, its advantages in compression, and why it causes Windows compatibility errors.

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Settings / HEIC

Why Your iPhone Takes HEIC Photos (And How to Change It)

A deep dive into why iOS uses HEIC, and how to change your settings to save photos as traditional JPG files.

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Coming Soon

HEIC vs. JPG: Which Photo Format is Best for You?

An extensive comparison of storage space, color depth (8-bit vs 10-bit), and compatibility between HEIC and JPG.

In Production