Tips & Tricks6 min read
How to Reduce PDF File Size for Email Attachments
Most email services cap attachments at 10–25 MB. Here's how to compress a PDF so it sends reliably - without ruining the quality or losing content.
SupaPDF Team
May 22, 2026
Blog
Practical guides and best practices for everyone who works with PDFs - from quick tips to deep dives on compression, security, OCR, and document automation.
Most email services cap attachments at 10–25 MB. Here's how to compress a PDF so it sends reliably - without ruining the quality or losing content.
SupaPDF Team
May 22, 2026
PDF/A is the archival standard for long-term document preservation. Here's what it means, how it differs from regular PDF, and when you're required to use it.
SupaPDF Team
May 15, 2026
Redacting a PDF means permanently removing sensitive text so it cannot be recovered. Here's how to do it correctly - and why highlighting in black is not the same thing.
SupaPDF Team
May 8, 2026
Scanned PDFs are images - Word can't edit them directly. Here's how OCR turns any scan into a fully editable .docx file in seconds.
SupaPDF Team
May 1, 2026
Scanned PDFs are just images. OCR turns them into real, searchable, copyable text. Here's how it works and when to use it.
SupaPDF Team
April 12, 2026
PDFs carry contracts, financial data, and personal information. Here's how to protect them properly - and what security features actually do what they claim.
SupaPDF Team
March 1, 2026
Combining PDFs sounds simple until you need to handle page order, bookmarks, and permissions. Everything you need to know about merging PDFs correctly.
SupaPDF Team
February 5, 2026
Large PDFs slow everything down - email attachments, uploads, storage. Here's how to shrink your files intelligently while keeping them sharp.
SupaPDF Team
January 10, 2026