getRawTextContent() returns text not found in pdfData.formImage

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难度
3/5
预计耗时
1-2 天
新手友好度
25/100
Issue 类型
缺陷
描述清晰度
需要澄清
活跃度
停滞
技术栈
json
领域
backend

调研方向

首先跟踪 getRawTextContent(),并在提供的示例中将其输出与 pdfData.formImage.Pages[].Texts 进行比较。调查 PDF 文本提取路径,并记录为什么在这些数组为空时仍可能返回文本;当该行为得到明确解释或确定了可复现的修正方案时,即可完成。

由索引模型根据 Issue 内容生成。

描述

When I look at the pdfData.formImage object there are no text blocks, but getRawTextContent() returns the strings that I expect to see. I'm not very familiar with how/if the implementation of text extraction differs, so is there a simple explanation for this e.g. the formatting of the pdf, or how do I go about debugging?

pdfData.formImage is something like

{"formImage":{"Transcoder":"[email protected] [https://github.com/modesty/pdf2json]","Agency":"","Id":{"AgencyId":"","Name":"","MC":false,"Max":1,"Parent":""},"Pages":[{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":52.625,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.5,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.036,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":49.036,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":47.932,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":47.932,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]},{"Height":47.767,"HLines":[],"VLines":[],"Fills":[{"x":0,"y":0,"w":0,"h":0,"clr":1}],"Texts":[],"Fields":[],"Boxsets":[]}],"Width":38.25}}
```
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