nutrient-document-processing
Process documents with Nutrient DWS Processor. Use for PDF generation and conversion, packet assembly, OCR, Processor JSON-content extraction, staged redaction, watermarking, signing, password protection, optimization, PDF/A, or PDF/UA output. Route high-fidelity markdown or spatial parsing to Nutri
By pspdfkit-labs · 422 installs
npx skills add pspdfkit-labs/nutrient-agent-skill --skill nutrient-document-processing
Source repository · Upstream listing
Nutrient Document Processing
Use this skill for managed document processing where fidelity, compliance, or a multi step workflow justifies transferring the user's files to Nutrient DWS.
Product router
Choose the product before estimating cost or selecting credentials:
Need Product Route used here
Convert, generate, assemble, OCR, JSON content extraction, redact, sign, optimize, PDF/A or PDF/UA output DWS Processor Pinned Python helpers in scripts/ using NUTRIENT API KEY
High fidelity document parsing to markdown or spatial JSON Data Extraction Separate /extraction/parse product, credential, and credit pool; use its current official client/docs
Accessibility auto tagging and PDF/UA validation workflow Accessibility Separate current Accessibility API/product; do not use the deprecated Processor /processor/pdfua endpoint
Do not reuse Processor cost estimates, credentials, or payloads for Data Extraction or Accessibility.
Setup
Get a Processor API key from <https://dashboard.nutrient.io/sign up/?product=processor .
Configure NUTRIENT API KEY through the agent host's protected runtime environment or secrets manager. Never ask the user to paste the key into chat, and never put it in command arguments, logs, generated scripts, or committed configuration. Verify only that the variable is present, not its value.
Each script uses PEP 723 metadata pinned to nutrient dws==3.1.0 ; run it with uv run .
Run helpers by path from the installed skill directory. Never assume the current directory is the skill directory.
Page ranges are zero based and inclusive . 0:4 means five pages. Negative indexes count from the end.
Paid run approval gate
Every helper invocation sends document content to the external DWS Processor API and consumes credits. Before each run:
1. Identify the exact operation and every local file or remote URL transferred.
2. Obtain a current credit estimate from the dashboard/pricing applicable to that operation.
3. Present the product, operation, transferred inputs, estimate, and proposed output path to the user.
4. Wait for approval immediately before the request.
5. Only then pass both estimated credits NUMBER and confirm external processing .
Approval never carries over to a retry, batch, second stage, redaction apply, or signature. Do not add the confirmation flag speculatively.
Helper preference
1. Prefer a covered scripts/ .py helper; it uses the pinned typed client and safe output writer.
2. For a multi step Processor job, copy and customize assets/templates/custom workflow template.py at runtime.
3. Use a raw request only when a current official contract is cited in the relevant reference. If the exact contract is uncertain, use the typed 3.1.0 helper instead of guessing.
All output helpers create files atomically with owner only permissions and refuse to overwrite an existing path. Choose a new path for a retry.
Single operation helpers
convert.py : pdf , pdfa , pdfua , docx , xlsx , pptx , png , jpeg , jpg , webp , html , or markdown ; handles binary, text content, and JSON content results.
merge.py , split.py , add pages.py , delete pages.py , duplicate pages.py , rotate.py : page and packet operations.
ocr.py , extract text.py , extract table.py , extract key value pairs.py : Processor OCR and JSON content extraction.
watermark text.py , optimize.py : delivery transformations.
redact ai.py : AI staging only for a local PDF. Visually review the staged result before a separately approved apply step.
sign.py : local PDF only; requires an explicit JSON config file with signatureType and verifies the output is a PDF container. Independently validate the embedded signature and trust chain.
password protect.py : reads passwords only from owner only local files ( chmod 600 ), never argv.
Multi step workflow template
Do not commit a job specific pipeline under scripts/ . Copy the template to a task specific temporary path, then point it back to the installed skill directory:
The final paid invocation still needs the operation estimate and explicit confirmation flags. Remove the temporary script when the job is complete unless the user asks to retain it.
Safety rules
OCR before extraction or redaction only when the source lacks a useful text layer.
Redaction is two stage: create annotations, visually review every match and missed match, then request separate approval to apply irreversibly. Search/render the final PDF to verify removal.
Signing requires explicit CMS or CAdES configuration. Fill, flatten, redact, assemble, and optimize before signing; treat the signed PDF as immutable.
Use real form field data expressed as Instant JSON or XFDF. Do not invent a fillForm build action.
Keep passwords and signature secrets out of argv, logs, and committed JSON.
Treat PDF/A and PDF/UA as compliance targets. Validate final artifacts with the user's required validator before claiming conformance.
Never call the deprecated /processor/pdfua endpoint for a new integration.
Reference map
references/request basics.md : product boundary, authentication, typed outputs, approval, and errors
references/generation and conversion.md : current conversion and generation patterns
references/pdf manipulation.md : inclusive ranges and page operations
references/extraction and ocr.md : Processor JSON content extraction versus Data Extraction parsing
references/security signing and forms.md : staged redaction, signing, forms, passwords, and watermarking
references/compliance and optimization.md : PDF/A, PDF/UA routing, optimization, and validation
references/workflow recipes.md : safe sequencing for multi step jobs