博客
处理 PDF 文件的指南和技巧。
How to Convert SVG to PDF and Keep It Vector
We converted the same logo twice. The plain SVG became a 1.3 KB vector PDF with selectable text. Add one drop shadow and it became a 97.3 KB image. Here are 3 free ways to convert SVG to PDF and how to keep the result vector.
2026年11月12日 · 阅读约 5 分钟
阅读文章
Why Is My PDF So Large? 5 Causes and How to Fix Each
We took apart a 7.9 MB, 3 page PDF: the photo was 74% of it, the text about 1%. Here are the 5 real causes of a large PDF, how to check which one you have, and what each compression level did to our file.
2026年11月10日 · 阅读约 5 分钟
How to Highlight in a PDF: 4 Free Ways (Online, Mac, Windows)
Highlight text in any PDF for free: in your browser with no upload, in Adobe Acrobat Reader, Mac Preview or Microsoft Edge. Learn how to change the colour, remove a highlight, highlight a scanned PDF and fix a greyed out highlight tool.
2026年11月6日 · 阅读约 5 分钟
How to Add a Hyperlink to a PDF (Web, Email, Phone or Page)
Add a hyperlink to a PDF in your browser: draw a clickable area, point it at a website, email, phone number or another page, or make every URL in the file clickable at once. Plus how to keep links working when you export from Word or Google Docs.
2026年11月4日 · 阅读约 5 分钟
How to Crop a PDF: Trim Margins or Cut Out Part of a Page
Crop a PDF in your browser by dragging a box or trimming white margins automatically. This guide covers both methods, page ranges, Acrobat and Mac Preview, and why cropping never removes sensitive content.
2026年11月2日 · 阅读约 5 分钟
How to Resize a PDF: Change Page Size or Make the File Smaller
Resizing a PDF can mean two things: changing the page size (A4, Letter, Legal) or shrinking the file. Here is how to do both, which fit option to pick, and the mistakes that make text blurry.
2026年10月23日 · 阅读约 5 分钟
How to Extract Images from a PDF at Full Quality (Free, 5 Ways)
Save every photo, logo and picture from a PDF at the resolution it was stored in, free and without uploading. Five methods compared, JPG or PNG, and what to do when a chart or a scanned page will not come out as an image.
2026年10月21日 · 阅读约 5 分钟
How to Convert TIFF to PDF (Multi-Page, Fax and Scanned Files)
Convert TIF and TIFF files to PDF without losing pages or quality. Free steps in your browser, on Windows and on Mac, what LZW and CCITT G4 mean for file size, and how to make the scan searchable afterwards.
2026年10月21日 · 阅读约 5 分钟
How to Convert Markdown to PDF: 4 Ways, With Tables and Images
Turn a .md file or README into a clean PDF with real tables, code blocks and images. Four ways compared (online, VS Code, Pandoc, browser print), plus fixes for missing images, wide tables and page breaks.
2026年10月21日 · 阅读约 6 分钟
How to Convert PDF to XLS or XLSX for Free (Excel, Mac, Sheets)
Most people who search for PDF to XLS just need their table in Excel. Convert to XLSX in your browser with numbers kept as numbers, then Save As XLS only if an old system asks for it. Steps and clean up fixes.
2026年10月20日 · 阅读约 5 分钟
How to Convert PDF to CSV for Free (Tables, Statements, Lists)
Turn PDF tables into clean CSV files in your browser: one file per table, per page or for the whole PDF. Which option and separator to pick, scanned PDFs, and fixes for Excel opening it all in one column.
2026年10月20日 · 阅读约 5 分钟
How to Convert PDF to EPUB for Free (Kindle, Kobo, Phone)
Turn a fixed layout PDF into a reflowable EPUB e-book with chapters, a table of contents and a cover, right in your browser. Steps, which PDFs work, and how to read the file on Kindle, Kobo or a phone.
2026年10月20日 · 阅读约 5 分钟
WoowPDF 博客介绍如何完成日常的 PDF 工作：在 PDF 与其他格式之间转换文件，合并和拆分文档，压缩大文件以便通过邮件发送，加密或解锁 PDF，以及修复无法打开的文件。每篇指南都会结合我们的免费在线工具逐步讲解，无需注册，不加水印。文章以英文撰写。