Fix Adobe Acrobat Optimize Scanned Documents Fails on Some PDFs
Question details
Adobe Acrobat Pro fails to optimize certain scanned PDF documents while successfully processing others through the Action Wizard.
- Product
- Adobe Acrobat Pro 2017
- Device & OS
- not provided
- Scenario
- Using the Action Wizard to batch optimize multiple scanned PDF documents.
- Observed behavior
- The optimization process works inconsistently, successfully processing some documents while failing on others, prompting the need for a reliable universal setting.
Verify that your Adobe Acrobat Pro installation is updated to the latest patch and ensure the target PDFs are not currently opened in another application.
Inspect and Prepare Problematic PDFs
Check for file-specific attributes like encryption, corruption, or previous processing that prevent Acrobat from optimizing the document.
There is no single global setting that guarantees Action Wizard success for every scan because individual file states vary significantly. Preparing the files individually often resolves the bottleneck.
Open the failing PDF in Acrobat, go to File > Properties, and click the Security tab. Ensure there are no password protections or restrictions blocking editing or optimization.
Navigate to Tools > Enhance Scans > Recognize Text and run OCR on the document before attempting to optimize it again.
If the file is unusually large or corrupted, try printing it to 'Adobe PDF' to create a flattened, repaired copy, then run the optimization on the new file.
Adjust Action Wizard Parameters
Modify the Action Wizard steps to handle processing errors more gracefully and prevent the entire batch from failing.
Optimize Scanned PDFs Easily with WPS Office
If Acrobat continues to fail during batch processing, try WPS Office to easily compress, edit, and optimize your scanned PDF documents with a high success rate.
- 1. Open the PDF: Launch WPS Office and open your scanned PDF document.
- 2. Access PDF Tools: Navigate to the 'Tools' tab located on the top ribbon of the interface.
- 3. Select Compress: Click on 'Compress' or 'PDF Compressor' from the available tool options.
- 4. Apply Optimization: Choose your desired compression level (e.g., HD, Standard, or Basic) and click 'Compress' to optimize the file.
Frequently Asked Questions
Why does Acrobat Optimize fail on specific scanned PDFs?
Acrobat often fails to optimize a PDF if the file is already highly compressed, contains complex encryption, has structural corruption, or includes unrecognized font types from third-party scanning software.
Is there a universal setting in Action Wizard to force optimization?
No, there is no single setting that guarantees success for every scan. The success of optimization depends heavily on the source quality, existing compression, and security settings of each individual document.
Does running OCR first help with PDF optimization?
Yes, converting scanned images to searchable text using the Recognize Text (OCR) tool can standardize the document's internal structure, significantly reducing optimization errors during batch processing.
