预览已就绪
生成完成后，这里会显示预览摘要。
PDF 转 EPUB 预览
上传 PDF 生成 EPUB 先看能不能读。
拖入扫描 PDF，先生成前 10 页 EPUB 预览。看清 OCR、断行和版式，再决定要不要整本转换。
- 1 个 PDF
- 前 10 页预览
- OCR 风险先看
- 可下载 EPUB
直接上传，马上预览。
选择 PDF 后生成前 10 页 EPUB。预览不值得读，就不要继续整本转换。
立即试用
PDF 预览工作台
最大 64 MB。当前 demo 只处理前 10 页。
- 最大 64 MB
- 仅前 10 页
- 下载预览 EPUB
预览状态
处理中
上传一个 PDF，即可开始预览流程。
预览页数
0
OCR 页数
0
待复查
0
页内预览
不离开浏览器，先读前几页。
先在这里看前几页预览，如果阅读效果可以，再下载 EPUB。
可选：先检查抽取出来的页面文字
大多数用户直接从上面的 PDF 上传开始。只有在你想逐行检查抽取文本时，再展开这里。
只有当你需要手动检查单页抽取结果时才用这里。主流程仍然是上面的 PDF 上传。
总分
55/100
发现问题
3
待复查
2
严重
0
断词错误
检测到断词错误。
公式结构风险
检测到类似公式的内容，请检查渲染策略。
页码残留
最后一行看起来像页码。
直接答案
扫描 PDF 转 EPUB 转换器是什么？
扫描 PDF 转 EPUB 转换器会把图片型 PDF 图书变成可重排阅读的 EPUB。Scanned PDF to EPUB 采用先预览再转换的路径：上传一份 PDF，先生成前 10 页 EPUB 预览，再检查 OCR 和版面风险，最后决定是否继续整本转换。
- 输入：一份最大 64 MB 的扫描 PDF。
- 输出：可下载的前 10 页 EPUB 预览。
- 质量检查：空 OCR、页码残留、断词、间距损坏、公式和版面风险。
- 适合场景：扫描书、公共版权档案、学术 PDF、Kindle 和 Kobo 阅读流程。
三步，先做一个判断。
现在这个产品不是完整出版流水线，它先回答一个问题：这份扫描 PDF 值不值得继续投入时间去做成可读 EPUB？
1
上传
选择一份扫描 PDF，先生成前几页的短 EPUB 预览。
2
阅读
打开预览，检查断行、标题、公式和图注在真实阅读场景里是否还清晰可读。
3
决定
决定继续整本转换、先修源文件，还是尽早停止，不再把时间浪费在糟糕扫描上。
用户反复遇到的问题
Reddit 和电子书论坛里，反复出现的就是这四类抱怨。
无论是 Calibre 讨论区、Reddit，还是 e-reader 论坛，扫描书转换的痛点基本都集中在这几件事。这个预览页就是为了先把这些问题看清。
01
转换卡在 1%，或者导出来还是整页图片。
很多扫描 PDF 本质上只是页面照片。没有可用文字层时，转换器要么卡住，要么把每页当图片塞进 EPUB。
02
PDF 能搜索，不代表 EPUB 读起来正常。
隐藏的 OCR 文字层经常带着断词、引号错误、奇怪符号和糟糕断行，搜索能用，阅读却很差。
03
表格、公式、图注、双栏最容易乱。
学术论文和旧期刊最容易在阅读顺序上出问题，公式、图注和参考文献也最容易失真。
04
PDF 是为打印设计的，不是为 6 寸屏设计的。
很多文件即使能打开，也会变成不断缩放、平移、裁边。用户真正想知道的是：重排之后到底能不能读。
扫描 PDF 转 EPUB 的前后对比样例。
这些样例比文案更有说服力：它们直接展示不同类型的扫描 PDF 在转换前是什么样，以及一个可信的 EPUB 预览应该保住哪些阅读结构。
Use Case 1
Public-domain book chapters
This is the simplest but highest-volume use case: judge whether a yellowed chapter scan becomes comfortable enough to read on a small e-reader.
Use Case 2
Math-heavy textbook PDF to EPUB
Formula pages break trust fast. A useful preview proves that equations, theorem blocks, and surrounding explanation still make sense on a real reading device.
Use Case 3
Two-column journal article to EPUB
Research journals usually fail on reading order. The preview should prove that columns, captions, and references survive reflow instead of collapsing together.
Use Case 4
Image-only scan with OCR fallback
Some PDFs have no usable text layer at all. The right behavior is not fake confidence, but a preview that shows what OCR recovered and what still needs review.
Simple pricing
Preview first. Upgrade only when the PDF is worth fixing.
Use the free preview to check OCR, reading order, and page-number leaks. Pro is for testing more PDFs. Done-for-you Repair is for files that need a human cleanup pass.
Free
$0 preview trial
- 3 PDF previews per day
- 1 PDF per preview
- First 10 pages per preview EPUB
- 64 MB maximum PDF upload
- OCR and layout risk summary
Pro
$19 per month
- 100 PDF previews per day
- 1 PDF per preview
- Up to 50 preview pages per EPUB
- Saved preview history after sign-in
- Built for users testing many scanned files
Done-for-you Repair
from $199 per PDF
- 1 PDF included, up to 200 pages
- OCR cleanup and reading-order repair
- Kindle and Kobo EPUB validation before delivery
- Larger or damaged files get a fixed quote first
Pro checkout runs through Stripe after one-time email sign-in. If checkout is temporarily unavailable, the Pro button falls back to email. Repair work is still quoted from the preview report before delivery.
用户在信任扫描书转换器之前，通常会问这些问题。
What does the live demo check today?
The live checker runs the repo's quality rules against extracted page text. It flags empty OCR output, page-number leaks, broken hyphenation, bad spacing, and formula-structure risk.
Does the current site convert a full scanned PDF into EPUB?
The current demo can generate a preview EPUB directly from an uploaded PDF. Production-grade full-book conversion still needs stronger layout recovery, better OCR repair, EPUB validation, and job orchestration.
Is it safe to test a page from a private book or archive?
In this demo, the PDF is uploaded to the current preview service so it can generate a sample EPUB. Review your deployment and privacy settings before testing private material. The page checker still exists for users who want to inspect extracted text before uploading.
What formats does this workflow aim to support?
The wedge is scanned PDF input, extracted page text for diagnosis, and a reflowable EPUB preview for reading on Kindle- and Kobo-style devices. It is not trying to become a broad everything-to-everything converter.
How accurate does the preview need to be?
Accurate enough to judge reading comfort and obvious structural damage. The preview is meant to answer whether the book feels clean enough to continue, not to replace final editorial review for every edge case.
Can it fix OCR problems automatically?
Some cleanup can be automated, but the product should stay honest about uncertainty. The key promise is to surface where review is needed so the user can decide whether to repair, crop, rerun OCR, or stop.
What happens with math, tables, or damaged layouts?
Those are the pages most likely to trigger risk labels. Formula structure, tabular alignment, footnotes, and badly cropped scans often need targeted repair before an EPUB is truly comfortable to read.
Who is this product for?
Readers and document owners with scanned books, academic PDFs, or public-domain material who want a reflowable EPUB for Kindle or Kobo without proofreading every page manually.
Why not use a generic PDF to EPUB converter?
Generic converters export files, but they rarely explain where OCR or layout recovery failed. This product is designed to show risk before the user commits to a full conversion.
Can I preview a scanned PDF before converting the whole book?
Yes. The main demo flow is designed around that exact question: upload one PDF, inspect the first pages, review OCR risk, and judge whether the full book is worth converting.
What kinds of scanned PDF examples matter most?
The most useful examples are before-and-after comparisons for noisy OCR, math-heavy academic pages, two-column journal layouts, footnotes, captions, and image-only scans that need OCR fallback.
What should a scanned PDF to EPUB preview prove?
It should prove reading comfort, not just file export. A good preview shows whether line breaks, page numbers, formulas, headings, columns, and captions still make sense on a small reading device.
获得最新资讯。
接收 OCR 修复、EPUB 预览、整本转换开放等产品资讯。