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wowTools

PDF Tools Online

Merge, split, and inspect PDF metadata online without uploading files—processing stays in your browser. Curated wowTools landing with local browser

Introduction

Most online PDF tools ask you to upload the document first. These do not: merging, splitting, and metadata editing happen in your browser using pdf-lib, with a worker when the device supports one. That difference matters for contracts, invoices, and medical paperwork, where sending a file to an unknown server is the real risk rather than the edit itself.

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PDF Toolkit

Merge, split, and inspect PDF metadata locally—plus image helpers for the assets that go into documents. Browse this curated wowTools collection of local

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Frequently asked questions

Do these online PDF tools upload my documents?
No. Files are read locally and processed in the page, which is the main reason to use them for confidential paperwork.
How do I extract specific pages?
Open PDF Splitter and enter a validated page range. Check the output page count before sharing, since an off-by-one range can include a page you meant to withhold.
Can I edit the title and author of a PDF?
Yes. PDF Metadata shows the existing fields and lets you update basic entries such as title, author, subject, and keywords, then download the result.
Why can't I open my encrypted PDF?
Password-protected files are rejected with a clear error. Remove the protection in a desktop application first, then process the unlocked copy here.
What size files can I process?
Individual files are capped at 50 MB and 500 pages, with lower combined limits for merges. Large jobs on low-memory phones may still be slow.