Enlarging Scanned PDFs: Simple Ways to Increase File Size Online

PDF files are essential in our daily routines, supporting various activities from professional tasks to education. They simplify file editing across different platforms. Often, we edit PDFs for various purposes, including compressing, copying, converting formats, reducing file size, and sometimes, increasing the size.

Sometimes, PDFs obtained from scans or other sources have low resolution, appearing pixelated and hard to read. In such cases, increasing the resolution of the PDF file is crucial for clarity. Thanks to technological advancements, you can easily increase PDF file size online. Here are several online methods to increase the size of your PDF files, ensuring they are clear and readable.

1. Using PDF Resizer

PDF Resizer, accessible at pdfresizer.com/resize, is a convenient online tool for altering PDF file sizes. This method allows you to modify PDF document sizes online without needing to install any additional software. All you need is a stable internet connection. Here’s how to use it:

  1. Go to pdfresizer.com/resize.
  2. Upload your PDF file to PDF Resizer by clicking “Choose Files,” selecting your PDF, and then clicking “Upload files.” Note that the file size limit is 100 MB. Wait for the upload to complete.
  3. Once uploaded, you’ll be directed to the “resize” interface. In the resolution section, choose your desired new resolution. Options include:
    • Low 72dpi (for screen viewing)
    • Med 150dpi (for ebooks)
    • High 300dpi (for printing)
    • High+ 300dpi (for PDFs with many images)
      For optimal quality and full color, especially for scanned documents, select “high+ 300dpi”.
  4. To adjust the paper size for printing, select “set paper size” and choose your preferred paper dimensions.
  5. After setting your preferences, click “Looks good, do the magic!” to start resizing.
  6. Wait for the process to finish, then click “download” to save the resized file to your computer.

2. Using PDF2GO

PDF2GO is another excellent online platform to increase PDF file size, resolving issues of pixelation and blurriness. A reliable internet connection is essential for using PDF2GO effectively. Follow these steps to increase the resolution of your PDF file using PDF2GO:

  1. Visit pdf2go.com/resize-pdf.
  2. Click “Choose file” and select the PDF file you wish to resize.
  3. The upload will start automatically. Wait for it to complete.
  4. After uploading, adjust the size by clicking “Size of pages.” You’ll see various format options suitable for different printing needs.
  5. Finally, click “Start” to begin the process of increasing the PDF file size. Once completed, click “Download” to save the file to your computer or laptop.

3. Using Soda PDF

Soda PDF is also a viable alternative for increasing PDF file size. Similar to the previous tools, Soda PDF requires a stable internet connection. Here’s how to increase PDF resolution using Soda PDF:

  1. Navigate to sodapdf.com.
  2. Click “Choose File”.
  3. Adjust margin and page size settings as needed, then click “Resize”.
  4. Wait for the process to complete.
  5. Once done, click “Download now” to save the file to your device.

4. Using Docupub.com

Docupub.com is another option for increasing PDF file resolution. This site’s resizing feature allows both increasing and decreasing PDF file sizes. Docupub.com remains a functional tool for this purpose. To use Docupub.com, follow these steps:

  1. First, go to Docupub.com to start increasing your PDF file size.

  2. Locate the “Resize/Scale Settings”. Here are the options you can adjust based on your requirements:

    • Pagesize: Automatically adjusts the PDF to a specific size, including landscape and portrait orientations.
    • Custom Pagesize: Manually adjust PDF size using points, inches, millimeters, or centimeters.
    • Scale: Adjusts the scale of the PDF (check this option).
    • Constrain proportions when scaling: Maintains aspect ratio when scaling (check this option for typical use).
    • Placethe original content in: Sets the position of the PDF content – left, center, or right (it’s best to leave this at the default).
  3. After choosing your settings, upload the PDF file to be resized. Click “Browse” or “Browser,” then “upload & resize”. Wait for the resizing process to complete.

  4. Once finished, download the file to save it to your device. The output PDF file will reflect the settings you specified.

These online methods provide simple ways to increase the file size of scanned PDFs. Hopefully, this guide helps you adjust PDF resolutions to meet your needs.

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