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Compress & Optimize

Fast PDF compression, compression to target size, PDF/A long-term archiving, Web linearization, document repair, and more.

10 tools · No sign-up for local tools

Local Processing (Offline Capable)

PDF Print Preflight Check

Professional prepress preflight verification. Check 300 DPI resolution, font embedding, 3mm BleedBox, CMYK/RGB colors, and PDF/X transparency to generate an ISO 12647 preflight score and compliance report.

Local Processing (Offline Capable)

Browser-local PDF compressor offering light lossless, recommended, and extreme tiers, with target-size mode via binary search and real-time stats on file size and savings %.

Local Processing (Offline Capable)

PDF Invert Colors & Dark Mode

Invert PDF colors into comfortable OLED dark mode, classic negative inversion or warm sepia paper tint for night reading and toner-saving printing. Private by design — files never leave your device.

Local Processing (Offline Capable)

Merge form fields into read-only page content for tamper-proof distribution; outputs an optimized copy when no forms are present. Unlike Sanitize, flattening targets form fields only without deleting scripts or metadata.

Hybrid Processing

PDF Linearizer (Fast Web View)

Restructure and optimize PDF object streams with best-effort tuning via local qpdf and heuristically diagnose Fast Web View markers; falls back to encrypted cloud qpdf if WASM is unavailable.

Local Processing (Offline Capable)

PDF to PDF/A Converter

Convert PDF to PDF/A locally with sRGB embedded ICC or CMYK named condition; honestly reports device color space stats and validation limitations.

Local Processing (Offline Capable)

Remove PDF Metadata

Clear title, author, subject, keywords and XMP metadata before sharing a PDF. For scripts and attachments too, use Sanitize.

Local Processing (Offline Capable)

Compress PDF to Target Size

Iteratively compress a PDF toward a target size (e.g. 100KB), stopping when reached or returning the best possible result.

Local Processing (Offline Capable)

Grayscale PDF (Rasterized)

Convert a PDF to grayscale for ink-saving prints. Rasterized output: pages become images, text not selectable.

Local Processing (Offline Capable)

Local PDF repair with structural health check (error codes and severity), deep repair and page-by-page rescue; encrypted files require prior decryption.