🔎 PDF 投稿前检查（字体嵌入 / 页面尺寸）PDF Pre-submission Checker (Fonts & Page Size)

使用说明与常见问题How-to & FAQ

「PDF 投稿前检查（字体嵌入 / 页面尺寸）」是什么？What is the PDF Pre-submission Checker (Fonts & Page Size)?

投稿前在浏览器里检查论文 PDF：列出所有字体是否嵌入、是否子集化，标出 Type 3 字体（IEEE PDF eXpress 等常见退稿原因），统计页数、各页尺寸（识别 A4 / Letter 并提示尺寸不一致）、PDF 版本、是否加密和图片数量，并生成可复制的检查报告。Check a paper PDF before submission, in your browser: every font with embedded/subset status, Type 3 fonts flagged (a common IEEE PDF eXpress rejection), page count, page sizes with A4/Letter detection and mixed-size warnings, PDF version, encryption and image count — with a copyable report.

如何使用「PDF 投稿前检查（字体嵌入 / 页面尺寸）」？How do I use the PDF Pre-submission Checker (Fonts & Page Size)?

把 PDF 拖到虚线框内（或点击选择）。几秒钟后会给出总体结论和逐项检查：红色表示投稿系统大概率会拒收（如未嵌入字体），黄色表示需要注意（如 Type 3 字体、页面尺寸不一致）。下面的表格列出每种字体所在页码，方便定位是哪张图或哪段文字引起的。Drop the PDF into the box. You get an overall verdict and itemised checks: red usually means the submission system will reject it (e.g. unembedded fonts), yellow needs attention (Type 3 fonts, mixed page sizes). The font table lists the pages each font appears on so you can find the figure responsible.

“字体未嵌入”怎么解决？How do I fix unembedded fonts?

LaTeX 用户通常是插图（PDF/EPS）里的字体没嵌入。可用 pdflatex 重新编译，并对插图用 “gs -dEmbedAllFonts=true -dPDFSETTINGS=/prepress” 处理；Word 用户在“选项 → 保存 → 将字体嵌入文件”中勾选后再导出 PDF。In LaTeX it is usually a figure. Re-export figures with fonts embedded or run them through Ghostscript with -dEmbedAllFonts=true -dPDFSETTINGS=/prepress; in Word enable “Embed fonts in the file” before exporting.

Type 3 字体是怎么来的？Where do Type 3 fonts come from?

最常见的是 matplotlib 默认导出的 PDF 图片。在绘图代码里加上 matplotlib.rcParams["pdf.fonttype"] = 42（以及 ps.fonttype = 42）后重新导出即可；老版本 dvips 用位图字体也会产生 Type 3。Most often matplotlib PDFs. Set matplotlib.rcParams["pdf.fonttype"] = 42 (and ps.fonttype = 42) and re-export; old dvips bitmap fonts also produce Type 3.

标准 14 字体没嵌入也算问题吗？Are unembedded standard-14 fonts a problem?

Helvetica、Times 等标准 14 字体可以在大多数阅读器正常显示，但 IEEE、ACM 等出版商要求所有字体都嵌入，所以仍会标红。Readers can display Helvetica, Times etc. without embedding, but publishers such as IEEE and ACM require all fonts embedded, so they are still flagged.

「PDF 投稿前检查（字体嵌入 / 页面尺寸）」免费吗？文件会上传吗？Is the PDF Pre-submission Checker (Fonts & Page Size) free? Are my files uploaded?

「PDF 投稿前检查（字体嵌入 / 页面尺寸）」完全免费，无需注册。文件只在你的浏览器里读取和处理，不会上传到任何服务器，关闭页面后不留痕迹，适合处理未发表的稿件。The PDF Pre-submission Checker (Fonts & Page Size) is free with no sign-up. Files are read and processed only in your browser, never uploaded to any server, and nothing is kept after you close the page — safe for unpublished manuscripts.