What is the Maximum PDF Upload Size on Acrobat.com?
Question details
The user wants to know the maximum file size limit allowed when uploading PDF documents to Acrobat.com.

- Product
- Adobe Acrobat.com
- Device & OS
- not provided
- Scenario
- Uploading a PDF document to Acrobat.com for sharing, storage, or processing.
- Observed behavior
- The user needs clarification on the specific upload size limit, which is 100 MB per file, and needs to know what steps to take if the file is too large.
Check the current file size of your PDF document by right-clicking the file and selecting 'Properties' (Windows) or 'Get Info' (Mac) before attempting to upload it.
Adhere to the 100 MB Limit by Compressing or Splitting the PDF
Acrobat.com restricts file uploads to a maximum of 100 MB per file. If your document is larger, you must reduce its size before uploading.
Acrobat.com supports uploading files up to 100 MB in size. If your PDF exceeds this limit, the upload will automatically fail. To successfully upload the document, you will need to bypass this restriction by optimizing the PDF to reduce its file size, or by splitting a bulky document into multiple smaller files.
Locate your PDF document on your computer, right-click it, and view the file properties to check if the size is over the 100 MB threshold.
If the file exceeds 100 MB, use a PDF compression software or online tool to reduce the image quality and remove unnecessary background data from the file.
If compression is not enough or you want to retain maximum quality, use a 'Split PDF' feature to divide the large document into two or more smaller files, ensuring each individual part stays under 100 MB.

Easily Compress and Split Large PDFs using WPS Office
If your PDF exceeds the 100 MB upload limit on Acrobat.com, WPS Office provides powerful built-in PDF tools to quickly compress file sizes or split large documents into smaller parts without losing formatting.
- 1. Open your PDF in WPS: Launch WPS Office and open the oversized PDF file that you are trying to upload.
- 2. Compress the PDF: Navigate to the 'Tools' tab on the top ribbon and click on 'Compress'. Choose your desired compression level and save the newly shrunk file.
- 3. Split the PDF (Optional): If the file is still too large after compression, navigate to the 'Page' tab and select 'Split PDF' to divide the document into multiple segments under 100 MB.
- 4. Upload your file: Return to Acrobat.com and upload your newly compressed or split PDF files without encountering any size limit errors.

Frequently Asked Questions
Why does my PDF upload fail even if it is under 100 MB?
Upload failures for files under the 100 MB limit are typically caused by an unstable internet connection, corrupted browser cache, or restrictive network firewall settings blocking the connection to Acrobat.com.
How can I accurately check the exact size of my PDF document?
On Windows, right-click the PDF file and select 'Properties' to view the size. On a Mac, right-click or Control-click the file and select 'Get Info'. Ensure you look at the actual file size rather than the 'size on disk'.
Does compressing a PDF significantly affect its quality?
Compression reduces file size by optimizing embedded images and stripping out redundant data. While it may slightly lower image resolution, the text quality remains perfectly clear, and the document is generally ideal for standard screen viewing and sharing.




