Guides & Tutorials

Understand how PDF tools work — and get more out of them.

• How to Choose a PDF Compression Level: Lossless vs Lossy (2026-09-18) — What do "light", "smart" and "strong" actually do? Understand lossless rewriting vs lossy re-encoding, pick the right level for the job, and avoid files that grow when compressed.
• PDF to Word: Why the Layout Breaks (2026-09-12) — A PDF is a set of drawing instructions; a Word file is a flowing document. Conversion is reverse engineering — knowing what the converter rebuilds tells you what will break and how to avoid it.
• Why Your Files Never Leave the Browser: Local Processing & COOP/COEP (2026-09-08) — Web pages can run full applications. How WASM, Pyodide and cross-origin isolation make PDF engines run on your device — and why that beats upload-based tools for privacy.
• 7 Practical Tips to Improve OCR Accuracy (2026-09-02) — OCR is pattern recognition on an image — input quality caps the accuracy. From scan resolution to language packs, these seven habits noticeably improve results.
• Two Ways to Crop a PDF: View Crop vs Hard Crop (2026-08-28) — Trimming the page edges can be reversible or permanent. Understanding CropBox vs page rewriting is the difference between a tidy file and a privacy incident.
• Efficient Workflows for Merging and Splitting PDFs (2026-08-24) — Normalize pages before merging, decide naming before splitting — a few small habits eliminate most rework.
• Metadata Privacy Risks in PDFs — and How to Clean Them (2026-08-20) — Author names, editing software, full revision timelines… hidden fields can leak more than the visible text. Spend one minute checking metadata before publishing.
• Best Practices for Turning Scans and Photos into PDFs (2026-08-16) — From a pile of photos to one tidy PDF: page fitting, ordering, rotation and size control — get it right in one pass.