File & PDF Tools — Merge, Split, Compress Online

Handle common PDF and file workflows with simple, browser-first tools.

All File & PDF Tools

PDF

PDF Merge

Join multiple PDFs into one final file.

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PDF

PDF Split

Extract chosen pages into a new smaller PDF.

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PDF

PDF Compress

Shrink document size while preserving readable output.

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Common file tool use cases

Document Ops

  • Merge report sections into one PDF
  • Split legal files into relevant subsets
  • Compress attachments before sharing

Sales & Marketing

  • Create smaller pitch decks for email delivery
  • Convert collateral pages into image previews
  • Standardize output formats for campaigns

Education & Admin

  • Split and distribute chapters quickly
  • Combine worksheets for assignments
  • Optimize document bundles for LMS upload

Freelance Workflow

  • Package deliverables in single PDFs
  • Apply basic watermarking to drafts
  • Prepare shareable client files fast

Practical online PDF tools for everyday file workflows

ToolCrux file and PDF utilities are built for common tasks that teams run every day: merging documents, splitting pages, compressing output, and converting formats. Instead of relying on heavyweight desktop software for simple actions, these browser-based utilities focus on speed and straightforward results.

This category is designed for users who need reliable PDF and file actions with minimal setup. All tools run locally in-browser, with no login required and direct download output.

Related Categories

ImageImage Tools CategoryData & Conversion Tools TextText Tools DeveloperDeveloper Tools

FAQ

How does browser-based PDF merging work?

The tool uses pdf-lib, a JavaScript library that reads and manipulates PDF files directly in your browser. You select multiple PDFs, the library combines their pages in order, and you download the merged result. No server upload required.

Can I extract specific pages from a PDF?

Yes. The PDF Split tool lets you specify page ranges like "1-3, 5, 8-12." It creates a new PDF containing only those pages. The original file is not modified.

How much can the PDF compressor reduce file size?

Results vary by document. PDFs with embedded high-resolution images see the largest reductions (often 40–70% smaller). Text-heavy PDFs with few images may see modest savings since the text data is already compact.

Are my PDF files uploaded to a server?

No. All PDF processing — merging, splitting, and compressing — runs entirely in your browser using JavaScript. Your documents never leave your device.

Is there a limit on the number of PDFs I can merge?

There is no hard limit. However, since processing happens in your browser, very large files or dozens of PDFs may slow down on devices with limited memory. For best results, keep total combined size under 50 MB.