GOLUPDFS BLOG
PDF wisdom, served fresh.
Guides, deep dives and best practices from the team building GoluPDFs.
Guide
1 min AIHow to Sign a PDF Online Free: The 2026 Secure e-Sign Guide
Why You Need Efficient best ocr reader for scanned pdfs Workflows
May 2026Read
Guide
1 min AIHow to Sign a PDF Online Free: The 2026 Secure e-Sign Guide
Combine PDFs Without Any Watermarks Online
May 2026Read
Tutorial
8 min AIHow to Compress a PDF to 100 KB Without Losing Quality
Need a tiny PDF for an online job board or passport portal? Learn how to compress PDFs under 100 KB using advanced sub-sampling locally.
May 2026Read
Guide
8 min AIThe Best Free PDF Compressor in 2026
We tested 12 popular compressors against 50 real-world PDFs. Here is what won and why browser-side compression is a security must.
May 2026Read
Guide
5 minMerge vs combine: how PDF tools differ (and when to use each)
Two terms, subtly different workflows. Choosing the right one saves hours.
April 2026Read
Privacy
7 minBrowser-side vs server-side PDF tools: a privacy guide
Why local processing matters — and how to verify a tool is really browser-based.
April 2026Read
Legal
9 minElectronic signature vs digital signature: what's the difference?
ESIGN, eIDAS, and PKI — explained for non-lawyers in plain English.
March 2026Read
Tutorial
11 minOCR best practices for clean, searchable PDFs
From scanning resolution to language packs — a primer on getting OCR right.
March 2026Read