An attachment exceeds the upload limit
First determine whether the PDF contains scanned images or selectable text. Re-encoding images may help scans; text-only or already compressed files may shrink very little.
Start with the problem at hand
Where is your file workflow getting stuck?
Understand the cause before processing. Each route includes public examples and ways to verify the result.
Upload rejected
Under 200 KB, but still rejected?
Read the real format, size and dimensions, then compare them with platform requirements.
Check an image in your browser → Compression did not helpWhy is the compressed PDF larger?
Two tests on the same input show when it is better to keep the original.
See unsuccessful tests and their outputs → Wrong print sizeWhy are the split pages smaller?
Distinguish page dimensions from print scaling, and check order with a four-quadrant example.
Review layout and dimensions →Inspect a PDF · Organize PDF pages · All tested guides and troubleshooting
Browse by tool category
PDF tools
Extract pages · Merge · Split by page · Split along lines · Compress · To images · Edit
Open tool →Image tools
Images to PDF · Compress images · Stitch images
Open tool →Audio and video
Convert audio · Convert video · Extract audio
Open tool →Command reference
Excel formulas · Linux commands · Python functions · Docker · Regex · HTTP · SQL
Open tool →Unit converter
Timestamps · Length · Temperature · Weight · Area · Volume · Data · Speed
Open tool →QR code tools
Generate QR codes · Decode QR codes · Wi-Fi / contact cards
Open tool →JSON tools
Format · Minify · Validate · Compare · Convert to CSV
Open tool →Text comparison
Compare text or code line by line · Highlight additions, deletions and changes
Open tool →Markdown editor
Live preview · Export PDF / HTML · Download .md
Open tool →Encoding tools
Base64 · URL encoding · HTML escaping · MD5 · AES
Open tool →Password generator
Random passwords · Custom length and characters · Strength check
Open tool →Start with a specific task
Read tested guides and download examples → · PDF file inspection · Organize PDF pages
Try a sample without personal information before processing your own files. These workflows provide original files, settings and actual outputs to download and compare.
Several receipts on one page
Splitting whole pages suits chapters; splitting along lines separates regions within a page. Check reading order with the four-quadrant example, and avoid cutting through text.
A screenshot is too large to send
First reduce dimensions to suit the intended use, then choose a format. Try JPEG for photos. Keep a PNG for comparison when transparency or sharp small text matters.
Choose how to process your file
| Task | Processing location | Before you begin |
|---|---|---|
| Image compression and stitching; JSON, codecs, unit conversion and more | In your browser | Large inputs still use device memory. You manage copied and downloaded content. |
| PDF, images to PDF, audio and video | On our server | Files must be uploaded. Results are stored temporarily, so download them promptly. |
| PDF OCR | Our server and a third-party recognition service | Page images are sent to a third party. Review the recognized text and layout manually. |
How to check the result
- After merging or splitting, check page count, orientation and order. Smart merging may place adjacent pages on one page and is unsuitable when the original layout must be preserved.
- After compression, compare file sizes and zoom in on small text, table lines and stamps. Keep the original if the output is larger or insufficiently clear.
- Check the unit system before conversion. Review content after JSON repair, OCR or format conversion: a successful operation does not guarantee a correct result.
Do I need to register or pay?
Core tools are free and require no registration. Resource-intensive features such as media conversion have daily limits; see the tool page for details.
What should I do if an error occurs?
Try reproducing the issue with the supplied sample. Record the tool URL, settings, browser and error message, then submit them through Contact and feedback. Do not attach sensitive original files that have not been sanitized.
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