PDFLean

Engineering & Manufacturing

Prepress handling for drawings and documents: merge, split, rotate and crop, N-up/imposition/booklet, grayscale to save ink, 300 DPI print preflight, and PDF/A archiving for consistent output.

Best for: Engineering, manufacturing, prepress and document control

How to use

  1. 1Merge drawings and specs, then correct page orientation
  2. 2Crop, resize and lay out N-up/imposition/booklet
  3. 3Grayscale to save ink and run a 300 DPI preflight
  4. 4Add a watermark, then archive to PDF/A

Related tools

Local Processing (Offline Capable)
Merge PDF
Combine multiple PDFs into one, in order. For interleaving front/back scans use Alternate & Mix; for single-file page ops use Page Organizer.
Local Processing (Offline Capable)
Split PDF
Extract pages by range, or split every N pages, per page, or into N parts.
Local Processing (Offline Capable)
PDF Compressor
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)
N-up Imposition
Impose 2 or 4 pages per sheet to save paper, with basic saddle-stitch booklet reordering; for advanced booklet printing with creep compensation, bleed, and crop marks, use PDF Booklet Maker or PDF Imposition.
Local Processing (Offline Capable)
PDF Imposition (Poster / Cut / N-up / Booklet)
N-up, booklet, poster tiling and page splitting all run locally in your browser with creep compensation, bleed, crop marks and fold lines — files never leave your device.
Local Processing (Offline Capable)
PDF Booklet Maker
Convert PDF documents into printable saddle-stitch booklets imposed 2 pages per side for duplex printing and center-fold binding. Runs locally in your browser — your file is never uploaded. For standard multi-page grids, use N-up Imposition.
Local Processing (Offline Capable)
Rotate Specific PDF Pages
Selectively batch-rotate even pages, odd pages, or landscape sheets without manual clicking. Perfect for fixing dual-sided scanner inverted pages. Private by design — files never leave your device.
Local Processing (Offline Capable)
Crop PDF
Crop PDF pages by margins — lossless vector crop with no re-rendering.
Local Processing (Offline Capable)
Resize PDF
Scale all pages to A4/Letter/A3/A5, centered and aspect-safe.
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)
Grayscale PDF (Rasterized)
Convert a PDF to grayscale for ink-saving prints. Rasterized output: pages become images, text not selectable.
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)
PDF Page Size Checker
Check each PDF page's paper size in millimetres, detect A4/Letter standards, and flag mixed page sizes.
Local Processing (Offline Capable)
PDF Page Orientation Checker
Check whether each PDF page is portrait or landscape, count mixed orientations and show rotation angles.
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)
Watermark PDF
Add a text or image (PNG/JPG) watermark to PDF, tiled or on a nine-position grid, with rotation, font size, color, opacity and page range.

Ready when you are

Runs in your browser whenever possible — no signup needed to start.

Open Merge PDF

PDFLean is a productivity tool and does not provide legal, medical, regulatory, or compliance advice. Review outputs before relying on them for regulated or high-stakes decisions.