How to detect a change in pdf file
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- Java
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Description
Hi guys, I am working on obtaining tabular data from pdf files.
Given the page number, x, y position of each text, I can locate and obtain the data from converted json file.
Now, if there is an update (i.e. some text insertions or deletions) in the pdf file, how could I still locate the new table position without examining the new converted json file.
Thanks in advance.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the repository's PDF-to-JSON conversion flow and how page, x, and y positions are represented in the converted JSON. No file, test, or entry point is named in the issue; done would require a defined, project-specific way to locate changed table positions without manually examining the new JSON.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100