PDF Page Resizer
Change PDF page dimensions (A4, Letter, A3, etc.) locally. Support aspect-ratio scaling, alignment choices, and custom sizes. Complete privacy.
Change PDF page canvas dimensions locally in your browser. Choose from standard print presets (A4, Letter, A3, A5, B5, etc.) or set a custom width and height. Supports portrait and landscape orientations. You can scale page content to fit the new dimensions, stretch it, or keep original dimensions while specifying the alignment (e.g. center, top-left). 100% secure client-side execution—files never leave your browser.
How to use
- 1Upload a PDF file to see its current physical dimensions
- 2Select a target size preset (A4, Letter, etc.) or choose 'Custom' to input specific width and height
- 3Choose portrait or landscape, and set the 'Fitting Mode' to either scale content or align it
- 4Select page scope (apply to all, current, or range) and preview the layout changes in the virtual viewport
- 5Click 'Resize & Export PDF' to download the processed PDF
正在载入本地 PDF 尺寸修改引擎...
FAQ
- Will A4 ↔ Letter conversion stretch content?
- Choose aspect-fit scaling (may add margins), stretch to fill, or enter custom width/height in mm or inches.
- What if pages have mixed sizes?
- Set one target paper size and the tool scales each page individually using your chosen alignment (center, top, etc.).
- Is this good for standardizing scanned pages?
- Yes. Batch-convert irregular scans to A4 or Letter for printing without manual layout work in desktop apps.