Extraction & Structuring
Extract Product Specs from Technical PDFs and Spec Sheets
Upload a PDF or DOCX and get your product specs back as structured data: each property, value, unit, and standard reference it finds is identified, scored for confidence, and anchored to its source wherever the text can be located. Click any field to verify it against the original document. Ask questions via the built-in chat. No manual cleanup, no copy-paste errors, no black box.
Position-aware extraction
Reads table structure from the layout, not just the text. Understands that “45 cSt” in the third column is a viscosity value, not random text next to a heading.
Domain detection
Auto-classifies your document’s industry (coatings, hydraulics, food processing, or any of 13 verticals) so property names and categories are correct for your domain.
Structure-only mode
Select zero target languages to run extraction, structuring, and auditing only, with no translation. Export structured data as JSON, Excel, PDF, or DOCX.
Diagram preservation
Embedded images (performance charts, dimensional drawings, product photos) are extracted from PDF and DOCX files and matched to their associated sections.
Raw PDF text vs structured extraction:
What you get from a PDF
Kinematic viscosity 45 cSt at 40°C ASTM D445 Flash point 210 °C ISO 2592 (COC) Density 0.87 kg/L at 15°C ASTM D4052
What SpecMake extracts
Property: Kinematic viscosity Value: 45 cSt at 40°C Standard: ASTM D445 Property: Flash point Value: 210 °C Standard: ISO 2592 (COC) Property: Density Value: 0.87 kg/L at 15°C Standard: ASTM D4052
Why generic PDF extractors fail on technical data sheets
Generic PDF-to-JSON tools treat every document the same. They extract raw text or table grids without understanding what the data represents. For a technical data sheet, this means:
SpecMake reads the document's layout, not only its text: tables stay tables, so a value keeps its row, its column and its unit, and the symbols of an options matrix are kept exactly as printed. The content is then structured into property, value and unit, keeping the section hierarchy and the conditions a value depends on.
Each value scored, and traceable wherever the text can be located
Each extracted field carries a confidence score (0–100%) indicating how certain the extraction is. A value read cleanly from a well-formatted table gets 95%+. A value reconstructed from a footnote or ambiguous table layout gets flagged with a lower score and a brief explanation of why. The confidence heatmap (green/amber/red) gives you instant triage: review the amber and red values, trust the green ones.
Click any field to see its source. Each extracted value is anchored to the exact page and a verbatim quote from the original document. Click the field and a split-pane viewer opens: the field context, confidence ring, and source quote on the left; the original PDF scrolled to the right page on the right. Navigate between fields with arrow keys. This is what makes the extracted data verifiable, not just fast.
This traceability matters for procurement (did the supplier actually specify this value?), quality assurance (is this the correct test standard?), and regulatory compliance (can I prove this field exists in the source document?).
Ask your spec sheet anything
After extraction, a chat panel lets you ask questions about the extracted data in natural language. “What's the maximum operating pressure?” “Which standards are referenced?” “Is there an ATEX rating?” “What information is missing?”
Answers cite specific sections, fields, and page numbers from the document. Citations are clickable, opening the source verification modal at the exact field. This means you can verify a cited answer against the original PDF, not just trust the AI's summary.
The chat works for both live uploads and historical documents in your library. Conversation context is preserved for follow-up questions, so you can drill into specifics without restating context.
How extraction works
SpecMake doesn't just read the text from your document; it reads the document the way an engineer would. Tables are read as tables, so a value stays with its row, its column and its unit. That is how it knows that “45 cSt” in the third column of a table is a kinematic viscosity value, not random text floating next to a heading.
For PDFs, this positional analysis works alongside the visual document content. The system sees both the rendered page and the underlying text structure, cross-referencing them to extract values accurately, even from complex multi-column tables, nested specifications, and documents with mixed layouts.
The output is structured JSON. Each extracted property comes back with its name and value, plus the unit and any test standard or condition the document gives it. This structured format is what makes everything downstream possible: domain-aware translation, the quality audit, supplier comparison tables, and clean document generation all work from this structured data.
Watch your spec sheet being read in real time
Most document processing tools show a spinner and make you wait. SpecMake streams the extraction live: you watch sections and fields appear one by one as the system reads your document. The progress indicator tells you exactly which stage the pipeline is in (extracting text, structuring data, running audit), with contextual detail about what's happening at each step.
From spec sheets to product databases
Structured extraction isn't just a step toward translation; it's valuable on its own. Companies managing large product portfolios often need to get specification data out of PDFs and into systems that can actually work with it: PIM platforms, e-commerce product databases, comparison tools, or internal engineering databases.
The JSON and Excel export formats are designed for this. Download your structured data and import it directly. No manual transcription, no copy-paste errors, no paying someone to key in values from a 30-page PDF.
With the EU's Digital Product Passport requirements approaching, having product specifications in structured, machine-readable formats is becoming a compliance requirement, not just a convenience. SpecMake's JSON-LD export for DPP platforms builds directly on this extraction: you can't structure what you haven't extracted.
Related articles
How to Translate Technical Data Sheets (TDS)
Four methods compared: what makes TDS documents harder to translate than they look.
Digital Product Passports and Technical Documentation
What the EU's ESPR means for structured product data and multilingual documentation.
Translation Errors That Cost Manufacturers Real Money
How extraction errors compound during translation, and why structured data prevents them.
Hydraulics & Fluid Power
Pressure ratings, flow rates, ISO standards: how extraction handles fluid power documentation.
Construction Materials
Compressive strength, thermal conductivity, fire classification: structured extraction for construction specs.
Extract and structure your first spec sheet
Upload in any source language and see the properties, values and units come back as structured data, in about a minute.
No account needed for the extraction, the compliance gaps per EU regulation, and a DPP readiness score when your product category is in scope. The audit, confidence scores and source links come with one.