Print Trail

Free Tools for book publishers

Useful online tools to help with your publishing projects. All free, with no sign-up required.

ISBN Barcode Generator

Generate print-ready ISBN barcodes for your book covers

Barcode Generator →

ISBN Lookup

Search and verify ISBN numbers. Get book details, and validate ISBNs instantly.

Search ISBNs →

GSM to US Weight

Convert European GSM paper weights to US pounds (lb). Essential for international publishers working with US printers.

Convert gsm to lbs →

US Weight to GSM

Convert US paper weights (lb) to European GSM. Perfect for US publishers working with European printers.

Convert lbs to gsm →

More Tools Coming Soon

We're working on additional tools to help streamline your publishing workflow:

Spine Width Calculator

Calculate book spine width based on page count and paper weight

Coming Soon

Print Cost Estimator

Estimate printing costs for different quantities and specifications

Coming Soon

Why Use Our Tools?

Always Free

No registration required, no hidden fees. Just helpful tools for publishers.

Accurate

Based on real needs from publishers and printing industry requirements.

Mobile Friendly

Use our tools on any device – desktop, tablet, or smartphone.

Have a Tool Suggestion?

We're always looking for ways to help publishers work more efficiently.

Share Your Ideas

Ready to automate your book sales and fulfillment?

Join publishers and authors who are already saving time and increasing profits with Print Trail