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Limin Zheng

Content & Data

Document extraction & comparison

Extract specific information from long files, or compare versions with source locations.

Choose this when
Choose this for extraction, summarizing and diffing supplied documents; for outside research use Deep research report/Public information collection.
Scope unit
A bounded file set, length and fields to extract
Possible delivery format
Files, reports or packages

A brief-first task can still need diagnosis: unreadable scans, an existing design system, or private authenticated journeys.

Prepare a brief →

You send · You receive

What to send

  • File types, length, languages and whether scans are involved
  • Questions to answer, fields to extract and output template
  • Confirmation you may share the files for AI-assisted processing

Start by describing the materials you already have; missing details can be added when we agree the scope. Before work begins, we will confirm the materials, permissions and working conditions needed for your specific task.

Possible outputs

  • Structured summary or extraction table
  • Version differences with page or section references
  • Ambiguities, gaps and unreadable content flagged

Key check

Key changes link to source page, section or unit.

Verifiable acceptance · 3
  • Sampled fields match the source files
  • Differences link back to passages or pages
  • Parsing or scan-quality limitations are disclosed

Hypothetical brief & output structure

Illustration · hypothetical

Illustrative example — not a completed client order

The request

Compare PRD v1 and v2, focusing on requirement changes and downstream impact.

Sample artifacts

  • changes.xlsxchange log
  • impact-summary.mdaffected areas and open questions

File names are illustrative

Other tasks of this kind

  • Compare two authorized rental agreement versions and list changes to deposit, maintenance and exit wording (not legal advice).
Output structure / test path

Example row: §3.2 | old rule | new rule | impact | source page

Write a brief from this example →

Scope boundaries

Test scan/handwriting legibility first; quote any substantial OCR/preprocessing separately.

Not included by default

  • Promising perfect OCR without inspecting samples
  • Professional legal review or formal certification
  • Unlimited rewriting of source documents

What affects the quote

Input volume, file quality, extraction complexity and sample verification.

Actual project references

There is currently no public example shown specifically for this service. Whether I can take on the task, its scope and how the result will be checked will be confirmed after I understand your needs.

Start with a short note

Three answers are enough. I will reply with what else is needed and whether a diagnosis comes first. You get a quote before any work starts.

Prepare a brief →

Document extraction & comparison

Start with a short note

Three answers are enough. I will reply with what else is needed and whether a diagnosis comes first. You get a quote before any work starts.

What to send
  • File types, length, languages and whether scans are involved
  • Questions to answer, fields to extract and output template
  • Confirmation you may share the files for AI-assisted processing
Illustration · hypothetical

Illustrative example — not a completed client order

The request

Compare PRD v1 and v2, focusing on requirement changes and downstream impact.

Example inputs

  • Authorized, readable PRD-v1.pdf and PRD-v2.pdf
  • Priority: permissions, edge states and acceptance criteria

To start, it helps to mention

  • Which documents are involved, and is the task summary, extraction or comparison?
  • What questions matter, and are the files scans?

Confirm before work begins: File readability, processing rights, volume and spot-check method

Public/de-identified information only. Private access requires separate authorization.

Open email draft →

Preview the text
Services brief — D01 Document extraction & comparison

First contact does not require a complete specification. Unknown fields may be blank or marked unknown.

What do you want to end up with?


What do you already have?


When do you need it? Any budget range?

Select and copy the brief manually if scripting or clipboard access is unavailable.

Public email is a contact starting point. This site has no booking, payment or file-upload service. zhenglimin.design@gmail.com

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