Resize PDF Pages
Resize PDF Pages calls setSize(width,height) on every copied page, defaulting to 595×842 points. It changes page boxes but does not scale, center, reflow, or reposition existing content. Content can be clipped, leave extra blank area, or interact unexpectedly with annotations and boxes, so this is not the same as fitting artwork to a new paper size.
Runs locally — files stay on your deviceDoes resizing an A4 page to Letter scale its content?
No. The page dimensions change while existing content coordinates remain.
Changing a page boundary differs from scaling page content
A true fit operation applies a transformation matrix to page marks and often updates annotations and boxes. setSize alone changes page dimensions.
How it works
Every page is copied, setSize receives entered point dimensions, and the document is saved.
Key concepts
Content stays at its coordinates
Reducing size can hide marks beyond the new boundary.
One size is applied globally
Mixed source pages lose their individual sizes.
When to use it
- Change boundary size when content coordinates are already appropriate.
- Add or remove surrounding page area deliberately.
- Test a uniform page-box change.
When not to use it
- Do not expect automatic fit-to-page.
- Do not use it for print scaling without inspection.
- Do not assume annotations and crop boxes adapt.
Worked examples
Larger canvas
- Input
612×792 to 700×900- Expected output
Extra page area
Content is not centered automatically.
Smaller page
- Input
500×700- Expected output
Possible clipping
Marks outside the new boundary remain out of view.
Zero width
- Input
0- Expected output
595 pt fallback
Zero is replaced by default.
Common mistakes
Calling it scaling
No content transform occurs. Correction: Use a fit/scale workflow.
Ignoring mixed page sizes
All pages get one size. Correction: Group or process pages separately.
Entering pixels
Fields use points. Correction: Convert physical units to 72 points/inch.
Best practices
- Compare content bounds with target size.
- Inspect annotations and every page.
- Use print preflight for production.
Related operations and differences
PDF Page Size Checker
Choose PDF Page Size Checker when you need to list the dimensions of every PDF page.; use Resize PDF Pages specifically for resize pages.
Add Blank Page to PDF
Choose Add Blank Page to PDF when you need to append a custom-size blank page to a PDF.; use Resize PDF Pages specifically for resize pages.
Add Page Numbers to PDF
Choose Add Page Numbers to PDF when you need to place centered page numbers on every page.; use Resize PDF Pages specifically for resize pages.
Add Text Watermark to PDF
Choose Add Text Watermark to PDF when you need to apply a diagonal text watermark to every page.; use Resize PDF Pages specifically for resize pages.
Crop PDF Pages
Choose Crop PDF Pages when you need to set a custom crop box on every PDF page.; use Resize PDF Pages specifically for resize pages.
Delete PDF Pages
Choose Delete PDF Pages when you need to remove selected pages from a PDF.; use Resize PDF Pages specifically for resize pages.
Limitations and privacy
- Changes every page to one size.
- No content scaling, centering, reflow, per-page selection, box synchronization, preview, or print preflight.
- Zero/invalid uses defaults; 80 MB limit.
The PDF is read and processed locally in this browser.
Frequently asked questions
Is content scaled?
No.
Are all pages resized?
Yes.
What unit is used?
Points.
Can content be clipped?
Yes.