PDF Tools

Browser-Native PDF Tools That Respect Your Privacy

Most online PDF tools work by uploading your files to a remote server, processing them, and sending results back. That means your contracts, financial documents, medical records, and personal files pass through a third party's infrastructure. This category works differently: every PDF operation runs entirely in your browser using JavaScript. Your files never leave your device.

Merge and Split PDFs Without Uploading Anywhere

Combining multiple PDFs into one document — or splitting a large PDF into individual pages — are the two most common PDF tasks. The PDF Merger loads each file directly from your device using the browser's File API, uses pdf-lib to copy pages between documents, and offers the combined PDF as a download. The PDF Splitter works in reverse: extract any subset of pages from a multi-page document. Both tools process files locally — a 50MB PDF never touches the internet.

The practical advantage: you can use these tools on confidential documents without any risk of data exposure. Tax returns, legal contracts, medical reports — all processed locally, downloaded to your device, gone from memory when the tab closes.

Compress, Rotate, and Organize PDF Pages

The PDF Compressor reduces file size by removing redundant metadata, unused objects, and optimizing the document structure. It won't recompress embedded images (that requires server-side image processing), but structural cleanup typically reduces file size by 10-30% — enough to fit under email attachment limits or reduce upload times. For scanned documents or image-heavy PDFs, the compression may be modest; for text-heavy PDFs with rich metadata, it can be significant.

Page organization tools — PDF Rotator, Page Remover, and PDF Reorder — handle the most common document cleanup tasks. Rotate a scanned page that came in sideways. Remove the blank pages a scanner added at the end. Rearrange pages in a report so the appendix comes before the conclusion. All without opening the original application or installing desktop software.

Extract Text, Convert to Images, and OCR Scanned Documents

PDFs store text in two fundamentally different ways: as actual text content (selectable, searchable) or as scanned images of text (bitmaps with no extractable characters). The PDF to Text tool handles the first case: extracting all selectable text from a digital PDF for pasting into another document or processing. For scanned documents where the text exists only as an image, the PDF OCR tool uses Tesseract.js — the same OCR engine that powers open-source document scanning — to recognize characters from the page image and produce a text output.

The PDF to Image converter renders each page to a PNG or JPG file. Common use cases: creating thumbnail previews of PDF pages, extracting a diagram from a report to use in a presentation, or converting a single-page PDF form to an image for embedding on a website. Pages are rendered at 1.5x scale by default for sharp output on retina displays.

Add Watermarks, Annotations, and Page Numbers

The PDF Watermark tool adds a diagonal text overlay — DRAFT, CONFIDENTIAL, or any custom text — across every page. Useful for documents in review, demo versions, or internal copies. Watermark opacity is adjustable so the text is visible without obscuring the content below.

The PDF Page Numbers tool adds sequential page numbers in the footer or header. Choose font size, position (left/center/right), and starting number. This is the quickest way to add page numbers to a scanned document or a PDF assembled from multiple sources that arrived without numbers.

For review and annotation workflows, PDF Annotate lets you add text comments and callouts at specific positions on a page. And for sensitive documents, PDF Redact covers selected areas with a solid black rectangle — the standard method for redacting sensitive information from documents before sharing.

Sign, Protect, and Verify PDFs

The PDF Sign tool lets you draw your signature with a mouse or touchscreen, type a signature in a stylized font, or upload a signature image — then places it precisely on the page. This is a visual signature, appropriate for internal acknowledgments, routine approvals, and situations where a handwritten-style signature adds a professional touch. For legally binding digital signatures with cryptographic verification, use Adobe Sign or DocuSign.

The PDF Hash tool generates a SHA-256 fingerprint of any PDF file using the browser's built-in Web Crypto API. This is useful for verifying that a document hasn't been altered — share the hash alongside the document, and the recipient can confirm the file they received matches the hash you published.