Connected browser-local PDF workflow

v10.84 connects page organization, merge/split, rotation/deletion/extraction, conversion, compression, annotation, forms, metadata, page sizing, N-up/booklet/poster printing, comparison, and repeated header/footer work without replacing the established historical PDF engines.

PDF processing boundaries

These tools operate within browser memory and the capabilities of pdf-lib/pdf.js and the existing local engines. Encrypted, malformed, scanned, XFA, unusual forms, complex signatures, OCR-dependent documents, and advanced desktop-editor features can require specialist software. Always verify generated files before discarding the source.

How to use this PDF Page Size Checker

Review mixed page sizes locally in points, inches, and millimeters.

Practical tips and limits

Processing runs in your browser and creates a new file rather than changing the original. Very large or encrypted PDFs can exceed browser memory or library support, so keep the source file until you verify the result.