1
Choose an unlocked PDF
Select one PDF up to 150 MB. A preview of its first page helps you check the document before changing its page size.
Set PDF page dimensions
Resize PDF pages to A4, Letter or a custom size
Give every page in one PDF the same output dimensions. Choose A3, A4, Letter, Legal or a custom width and height in millimetres, then set portrait or landscape and choose how the existing page fits.
2
Choose dimensions and orientation
Select A3, A4, Letter or Legal, or enter a custom width and height from 25 to 2,000 mm. Set portrait or landscape for the output pages.
3
Choose how each page fits
Contain keeps the whole page visible with possible empty space. Fill covers the new page and may crop the edges. Stretch fills the new size but can change proportions. You can also choose a background color.
4
Resize and download
Create a separate PDF with the selected dimensions on every page, then download and review the result. The source PDF on your device remains unchanged.
Key features
What you can do with Resize PDF
Practical capabilities for this document workflow.
Standard and custom sizes
Use A3 (297 × 420 mm), A4 (210 × 297 mm), Letter (215.9 × 279.4 mm) or Legal (215.9 × 355.6 mm), or enter custom dimensions between 25 and 2,000 mm.
Portrait or landscape
Swap the output width and height without editing individual source pages.
Contain, fill or stretch
Keep all page content visible, cover the page with possible cropping, or stretch content to the exact output dimensions.
Preview before resizing
Check the first page against the selected size and fit setting before creating the new PDF. Review the complete downloaded file afterward.
Separate output file
Download a new PDF without overwriting the original file.
Document limitations
Password-protected PDFs must be unlocked first. Resizing rebuilds page appearances, so interactive form controls and links may become regular page content.
Privacy
Resize PDFs in your browser
The tool reads the selected PDF and creates the resized download in your browser. It does not send the document to a Fylvexa PDF-processing server. Ordinary website analytics are separate from document processing.
Browser-first
Fast workflow
No desktop app
Frequently asked questions
Resize PDF FAQ
Select a question to view the answer.
Choose an unlocked PDF, select A4 or Letter under Page size, select an orientation and content fit, then choose Resize PDF and download the new file.
Yes. Select Custom and enter the output width and height in millimetres. Each dimension must be between 25 and 2,000 mm.
Contain scales each page without cropping but may leave space around it. Fill covers the output page and may crop edges. Stretch uses the entire output area and may distort the page.
No. The tool generates a separate downloadable PDF. The original file on your device is not overwritten.
Resizing rebuilds page appearances. Interactive form controls and links may become static page content, so review the output before sharing it.
The resize workflow reads and processes your PDF in the browser and creates a local download. The selected document is not sent to a Fylvexa PDF-processing server.
Related tools
Continue your document workflow
Open another Fylvexa tool that works well with this task.
Resizing changes individual page dimensions. To arrange PDF pages on one sheet instead, use N-up PDF with 2, 4, 6 or 8 pages per A4 or Letter sheet.