Outsource file validation to a highly scalable, serverless microservice pipeline.
Gate, fix, and route uploads in milliseconds.
Drop our lightweight JS script tag into your checkout, registration, or order form. The Filecheck Element handles client-side state, progress meters, interactive failure reviews, soft-proofing, and auto-sizing wraps automatically.
<script src="https://cdn.filecheck.io/element/v1/filecheck.js"></script>
<script>
const fc = Filecheck('pk_live_51HxFy...');
const intake = fc.elements.create('intake', {
workflowId: 'wf_bizcard_002',
presentation: 'inline'
});
intake.mount('#fc-slot-product-101');
intake.on('status', (event) => {
document.getElementById('checkout-btn').disabled = !event.canProceed;
});
</script>Check incoming PDFs for bleed, CMYK color profiles, image resolution (DPI), and embedded fonts. Auto-correct simple issues instantly.
Show users side-by-side previews of automated adjustments (e.g., RGB to CMYK shifts or padded canvas margins) for explicit checkout sign-off.
Enforce strict catalog criteria. Standardize backgrounds to white, detect crops/aspect ratios, and strip private EXIF data from photographs.
Run native compliance validations in the cloud. Check files against PDF/A or PDF/UA specs to meet strict corporate or accessibility standards.
Automate file processing. Split multi-page documents, merge distinct cover and body uploads, and construct print-ready packages visually.
Protect document ingestion queues. Verify image legitimacy by checking camera EXIF parameters, identifying digital crops, and scanning legibility.
We act as a proxy uploader. Files are checked, optionally cleaned, sent directly to your S3 bucket, and purged from our logs.
We are not a public CDN. Every uploaded file and preflight report is protected behind temporary AWS S3 signed requests.
Headless integration for developers. Control rule cardinality, validate MIME types, and query JSON structural file reports on your own server.
Our serverless engines check and auto-correct over a dozen file issues on ingestion. Click on any term to read its detailed prepress definition and print impact.
Rules applied to vector layouts and composite PDF submissions.
Validates effective DPI of raster placements and downsizes high-resolution layers.
Verifies required bleed margins and auto-extends artwork edges by mirroring/stretching outer pixels.
Calculates total area ink density of CMYK plates to prevent oversaturation and drying smudges.
Audits standard boundaries (MediaBox, TrimBox, BleedBox) and auto-aligns coordinate grids.
Strips unsupported color spaces and auto-converts RGB to CMYK using standard targets (FOGRA39/GRACoL).
Scans text and fine lines for 4-color black and auto-downconverts elements to pure Key (100% K).
Validates font embedding descriptors in PDF tables to prevent layout drift or random character substitutions.
Subsets full font dictionaries, stripping unused characters to decrease file size and avoid imposing conflicts.
Measures distance from text bounding boxes to trim edge, warning if contents are too close to the cut line.
Flattens live transparency groups, blend modes, and drop shadows to ensure reliable rasterization on RIP.
Merges multiple layers into a single flattened level, removing hidden layout components or designer lines.
Checks for overprint parameters, warning on white text elements that would disappear on press.
Validates conformance metadata keys to verify files comply with ISO PDF/X standards (PDF/X-1a, PDF/X-4).
Flattens dynamic AcroForm / XFA form values and strips sticky review notes, comments, and stamps.
Scans thickness of all vector strokes and auto-thickens thin paths below the printable threshold (0.25 pt).
Audits orientations, required page counts, size consistency, and double-page spread layouts.
Warns on illegible text sizes, checks font formats, and converts text characters to outlined vector curves.
Locks color output to CMYK and automatically converts unsupported Pantone spot plates to standard process weights.
Clears editing password locks, verifies print permissions, and strips digital signatures to allow plate changes.
Reconstructs broken xref cross-reference tables, repairs syntax warnings, and optimizes stream structures via mutool.
Rules applied to uploaded bitmap photographs (JPEG, PNG, TIFF, WebP) for catalog or layout placements.
Standardizes incoming formats (WebP, GIF, BMP) into flat high-quality JPEGs or TIFFs dynamically.
Measures resolution at target print dimensions, upscaling low-DPI uploads using deep learning Super-Resolution models.
Flattens transparent alpha channels (e.g. in PNGs) onto solid white backing, preventing dark background box errors on press.
Isolates subjects and strips background pixels using serverless AI semantic masking on upload.
Ensures uploaded photos match exact target proportions, automatically center-cropping to prevent squishing or white gaps.
Assembles multiple slot uploads into horizontal, vertical, or grid layouts for front/back or multi-part orders.
Detects excessive ink load in raster pixels and auto-corrects values by applying ink-limited ICC profiles.
At Filecheck, we separate the physical preparation from policy compliance:
Prepares files for successful production. This includes fixing color profiles (RGB to CMYK), extending canvas margins for crop bleed, embedding font sets, and ensuring print DPI is press-ready.
Ensures absolute compliance against strict industry and accessibility standards. This validates structural standards (like ISO PDF/A for digital archives or PDF/UA for screen reader accessibility) using VeraPDF.