Reorganizar PDFs de Duas Colunas
Divida documentos de coluna dupla duplicando páginas e redefinindo a CropBox para leitura em uma única coluna.
Arraste e solte arquivos aqui, ou clique para procurar
or
Divide de forma inteligente a medianiz central e distribui verticalmente as colunas esquerda e direita em layouts legíveis e confortáveis de coluna única.
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.
Como usar
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.
Sobre esta ferramenta
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.
Casos de uso
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.
Perguntas frequentes
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.