Compress a PDF without losing text, links or form fields
Choose between text-preserving optimization and flattened images, diagnose missed size targets and check a compressed file before submission.
Start with what must survive compression
Before reducing file size, decide whether the recipient needs searchable text, clickable links or a fillable form. A smaller PDF is not a useful result if it loses the feature the recipient needs. Keep the original, especially when it carries a digital signature.
In DocPixel, start with Preserve text & links. This optimizes the PDF structure and eligible embedded images without rendering every page as a picture. An already optimized PDF may not become smaller; the tool returns the original when its attempted optimization would increase the size.
Choose the compression method deliberately
| Your document | First choice | Check afterwards |
|---|---|---|
| A report with selectable text and links | Preserve text & links | Copy a sentence and open a link. |
| A PDF with interactive form fields | Preserve text & links | Open the saved file and test its fields. |
| A photo-based scan with no needed interactive features | Try preservation first; consider Flatten to images if needed | Inspect small print, stamps and signatures. |
| A digitally signed record | Keep the signed original | Ask whether the recipient accepts an altered copy. |
Flatten to images renders the selected pages as JPG pictures. Selectable text, links and interactive fields are not retained. A scan that previously had an OCR text layer will lose that layer. Rewriting a PDF can invalidate a digital signature even when the pages look unchanged.
When a size target is missed
A target is a check on the result, not a guarantee. For example, a 6 MB scan requested under 5 MB may remain too large after text-preserving optimization. If the tool reports a missed target, do not assume the downloaded file will pass the receiving form.
- Check the receiving service’s actual limit and whether it accepts several files.
- Use Split PDF if separate files are permitted. Keep a sensible order and include every required page.
- For a scan, consider flattened compression only if losing searchable text and interactive features is acceptable.
- Compare the result with the original at normal size and zoom in on the smallest text. Return to the original for another attempt.
Check the downloaded file, not only the preview
Open the downloaded PDF in the viewer your recipient is likely to use. Check page count, orientation, important images and readability. If you need text search, search for a distinctive word. If you need links or fields, test them in the saved file. Finally, inspect its size in bytes against the upload limit. The browser’s successful conversion message does not certify that another website will accept the file.
Try this with your file
Open the matching DocPixel tool and use one representative file or page first. Keep your original until you have checked the downloaded result.
Open PDF compression →