How to change a PDF file size in 4 easy steps.
Learn how to easily resize a PDF to fit any format in four easy steps.
PDFs offer a reliable and consistent way to view and share documents online. But sometimes a PDF document may need resizing for printing, sharing or to improve its readability. Learn how to change a PDF file size in our simple step-by-step guide with Adobe Acrobat.
PDFs are commonly used because they maintain formatting across different devices. However, there are times when you need to adjust the page size to match specific requirements, such as fitting to A4, Letter size, or any other custom dimensions. Changing the PDF page size ensures your documents are formatted correctly and look as intended.
Why might I need to resize a PDF?
PDFs are commonly used to view and exchange documents because they maintain formatting across a range of devices. But there may be times where you need to resize a PDF for displaying, sharing or printing. Resizing a PDF involves changing the dimensions of the file to ensure your document is formatted correctly and looks as it should.
Here are common reasons why you might need to resize a PDF:
- Printing: to fit specific paper dimensions.
- Viewing: to fit web requirements.
- Readability: to optimise for smaller screens, like smartphones.
- Storing: to save on storage space.
- Sharing: to fit within an attachment size limit.
How to resize a PDF with Adobe Acrobat.
Change the size of a PDF with Adobe Acrobat. Easily adjust a PDF size to fit your needs with these four simple steps.
Step 1: Open your PDF.
Open the PDF file you want to resize in the free Adobe Acrobat Edit a PDF tool.
Step 2: Select the page size.
- Open Adobe Acrobat, then head to File > Print.
- Select Page Size & Handling.
- Choose the Fit option to scale your PDF to the selected paper size. Or click Custom Scale to scale to a specific size.
Step 3: Adjust the page size.
- Choose from common print size options like A4, A5, or A6.
- Or manually enter your own dimensions into the width and height fields to create a custom size.
Step 4: Save your new PDF.
- When you’re happy with your new page size, click Apply or OK.
- Preview your document to make sure it looks as it should.
- Then click Save As to save your new resized PDF.
You can also change a PDF page size in other PDF editing software.
How to resize a PDF with online tools.
You can also change the size of a PDF using various online tools. Here are few options to consider:
- Crop a PDF. Trim or resize a PDF using a Crop PDF tool. Simply drag and drop your PDF into the tool, then crop as desired.
- Compress a PDF. Need to reduce the file size of your PDF? Easily compress a PDF online with the Adobe Acrobat Compress a PDF tool. Drag and drop your PDF to begin.
- Split a PDF. Separate a PDF into multiple files with the free Split PDF tool. Drag and drop a PDF into the drop zone, then use the divider lines to split the PDF into individual files.
Top tips for resizing PDFs.
Before resizing a PDF, here are some tips to keep in mind:
- Always create a copy of your original PDF before resizing, so you always have a backup.
- Apply the same changes across all pages when resizing multiple documents to ensure consistency.
- Don’t be afraid to experiment with different dimensions / formats until you find the right fit.
- Check the formatting, text and images of your PDF before sharing / uploading to ensure everything looks clear and aligned.
Discover even more ways Adobe Acrobatcan help you professionally edit documents easily across any device.
Frequently asked questions.
Yes. You can easily change the size of your PDF to fit any format with Adobe Acrobat. Just open the PDF file you want to modify using the free Edit a PDF tool. You could also resize a PDF with other online PDF editing software.
It’s easy to reduce the file size of a PDF using the Adobe Acrobat free PDF compressor tool. Just select the PDF file you want to modify, choose the compression level and click compress. Once you’re done, download your compressed file or share it with others.
Easily scale a PDF to A4 with Adobe Acrobat. Just adjust the PDF page size setting by selecting the A4 option. You can also enter a custom size for your PDF by manually inputting your own dimensions into the width and height fields. A4 paper dimensions are 210 millimetres by 297 millimetres.
More resources for PDF editing.
Once you’ve mastered how to change a PDF file size, here are some additional PDF resources to work with:
- Learn how to redact a PDF.
- Discover how to open an Edit a PDF on a Mac
- Find out how to scan multiple pages into one PDF
- Learn how to use an Apple Pencil on a PDF file.
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