雙欄論文重排
無損複製頁面並重新限制 CropBox 左/右視口，無損、100% 矢量級實現雙欄變單欄。
Drag and drop files here, or click to browse
or
中縫智能矢量對齊切分。無損提取頁面左右子欄並自動垂直串聯，一鍵輸出單欄排版適合移動端直接暢讀。
Designed for Trust and Speed
PDFRunway handles your documents locally, keeping data secure and processing lightning-fast.
Easy to Use
Simple 3-step processes designed for speed, clarity, and non-technical users.
Fast & Reliable
High-performance local compilation keeps processing fast, secure, and responsive.
100% Secure
Your documents never leave your browser. Zero uploads, 100% client-side privacy.
Works Anywhere
Access the full suite on any browser, system, desktop, or mobile device.
使用方法
Follow these three simple steps to process your file in seconds.
Upload double-column PDF
Provide the IEEE/ACM journal report or multi-column PDF sheet.
Inspect partition gutter
Verify the red vertical partition slice guides. Adjust margins to prevent overlapping elements.
Reflow and save
Click execute to compile the pages into flowable layouts and download instantly.
關於此工具
The Academic Two-Column Reflower solves the most significant pain point of digital research: reading papers on standard mobile screens.
Double-column layouts (used by IEEE, ACM, Nature, and major reports) are designed for A4 paper. Navigating them on phone screens or Kindle devices requires constant zooming, dragging right, scrolling down, and panning back up. It breaks reading comprehension completely.
Our processor implements a smart paragraph reflow and vertical partition barrier scan. It analyzes character coordinates to map double-column gutters, divides the layout, and weaves segments vertically (left column first, then right). Graphs, formulas, and headings are seamlessly rearranged into a single-column, flowable vertical scroll PDF.
使用場景
e-Reader Book Import
Convert dense double-column essays into comfortable single-column documents matching Kindle and Onyx screens.
Subway Phone Reading
Read research literature comfortably with single-hand vertical swipe gestures during transit.
Archival Journal Formatting
Modernize old narrow-column newspapers into readable, single-column web formats.
常見問題
Have questions? Find quick answers about this tool here.
Our engine applies "span element detection." When an equation or diagram exceeds normal column widths, it is isolated as a full-width item, maintaining original proportions without clipping.
Not at all. We rewrite PDF text object transform matrices at the object tree level instead of rasterizing, meaning text remains 100% vector and fully selectable.
For flat image-based PDFs, we highly recommend running our OCR tool first before executing the Reflow process.