Blog
Learn the best tips and tricks for PDF processing
PDF/A Conversion and Validation — For Theses, Tenders, and Long‑Term Archiving
What PDF/A is, when you need it, differences between levels (A‑1b/A‑2u, etc.), step‑by‑step conversion from regular PDF, common failures, and validation tips.
The Complete Guide to Merging and Splitting PDFs: Merge, Extract, Delete, Rotate — All You Need
A scenario‑driven guide to PDF page management: merge, split, extract pages, delete pages, rotate and reorder — with Windows/macOS and online methods plus practical tips.
Make Scanned PDFs Searchable: An OCR Best‑Practice Guide (Accuracy & Size)
Turn image-based PDFs/scans into searchable, copyable text — covering preprocessing, language selection, table recognition, export formats, and compression.
Merge Receipts/Invoices for Reimbursement — Multi‑Format, Sorting, Rotation, Compression
Turn messy receipts/invoices into a single, submission‑ready PDF. Handle mixed formats, sorting, orientation fixes, blank page removal, size limits, and common error checks.
Protect Tender/Proposal PDFs — Passwords, Permissions, Watermarks, and Flattening
How to protect bid/proposal PDFs: open password vs. permissions, disable copy/print, add watermarks, flatten layers, PDF/A compatibility, signing order, and compliance tips.
How to Convert HEIC Images to PDF
Want to convert iPhone HEIC photos to PDF? Here are several simple methods, from iPhone's built-in features to professional online tools like dpdf.com, there's always one that suits you.
How to Convert PNG to PDF
This guide provides concise steps for converting PNG image files to PDF format, covering online tools and built-in operating system features to help you easily complete single or batch conversions.
How to Make a PDF on iPhone
Explore multiple efficient methods to create PDFs on iPhone. Whether using built-in features, third-party apps, or online tools, this article will help you get it done effortlessly.
How to Resize PDF Pages- A4, Letter, and Custom Sizes
Learn how to change PDF page sizes, such as adjusting to A4, Letter, or custom dimensions. This article introduces online tools and "Print to PDF" methods.