PDFNexa PDF toolkit
Choose the right PDF tool for the job—not just the familiar button
A PDF can be too large, impossible to search, badly ordered, difficult to edit, or unsafe to share. Those are different problems. This page explains which PDFNexa tool fits each one, what the operation changes, and what still requires your review.
Content and format
Use these tools when the information must change—not only the page order
Editing and conversion are easy to confuse. Editing keeps the document as a PDF while adding or changing selected elements. Conversion moves the content into another format and can rebuild the layout.
Edit PDF
Add a short line of visible text to one selected PDF page without rebuilding its layout. This workspace does not replace existing words, insert images, draw shapes or remove underlying content.
- Adding a short note or label
- Placing a short text label or note
- Annotating a document for review
- Nothing important is covered
- Fonts and alignment remain readable
- Existing digital signatures were not required to remain valid
Does not automatically: rewrite complex paragraphs, recover the original source layout, or provide verified redaction.
Open the Edit PDF guide →Convert PDF
Move PDF content into another file type when substantial editing, data reuse, image extraction, or compatibility matters more than preserving the exact original structure.
- Creating JPG or PNG page images for visual use
- Extracting page images
- Moving tabular content for further work
- Fonts and page breaks
- Tables, columns, equations, and links
- Forms, bookmarks, and interactive elements
Does not guarantee: pixel-perfect layout, correct table reconstruction, or editable text when the source is only a scan.
Open the Convert PDF guide →Pages and structure
Choose between organizing, merging, and splitting
These operations work with pages and document boundaries. They may preserve visible page content, but they can still affect bookmarks, links, forms, attachments, and certificate-based signatures.
Organize PDF pages
Reorder, rotate, duplicate, or remove pages inside a document. Use it when the correct pages already exist but their sequence or orientation is wrong.
- Check PDF page positions in the source reader before exporting.
- Keep the untouched source until every page is checked.
- Confirm that two-sided forms remain together.
Merge PDFs
Assemble separate PDFs into a single packet. Use it for a proposal with appendices, a submission bundle, or scans produced in several batches.
- Name and sort source files before selecting them.
- Remove old versions and duplicate pages.
- Check each section boundary in the result.
Split a PDF
Extract selected pages or create several smaller documents. Use it when recipients need different sections or a large scan contains separate records.
- Distinguish printed labels from PDF positions.
- Name outputs by purpose, not only numbers.
- Remember that splitting is not redaction.
Wrong order? Organize. Separate files belong together? Merge. Only some pages should leave the original? Split.
Delivery and access
Prepare the final copy for sending, access, or approval
These tools are normally used near the end of a workflow. Applying them too early can create extra work or invalidate a previous result.
Compress PDF
Reduce delivery size after content and page order are final. Image-heavy scans usually offer more opportunity than text-first PDFs.
Sign PDF
Add a visible signature only when that method is accepted. An uploaded signature image, an electronic-signature audit trail, and a certificate-based digital signature are not equivalent.
Protect PDF
Add password-based access protection to the final copy. Use a unique passphrase and deliver it through a separate channel where appropriate.
Protection is not redaction
A password can restrict opening the file. It does not remove information from pages, erase metadata, or prevent every action after an authorized person opens the document. If someone may open a file but must not see a value, use a proper redaction workflow.
Scans and searchable text
Use OCR when the page is a picture of text
Try selecting a sentence or searching for a distinctive word. If nothing can be selected, or selection grabs the whole page, the PDF probably needs text recognition rather than ordinary conversion.
What OCR adds
Optical character recognition estimates characters and reading order from page images. A searchable-PDF workflow can retain the visible scan and add a text layer behind it.
- Search can find words when recognition is correct.
- Short passages may be copied for reuse.
- Archives can become easier to index.
What you must verify
- Names and identifiers
- A single wrong character can identify the wrong person or record.
- Amounts and dates
- 0/O, 1/l/I, 5/S, punctuation, and faint digits are common trouble spots.
- Columns and tables
- Text may be recognized correctly but copied in the wrong reading order.
- Accessibility
- OCR alone does not add correct headings, tags, form labels, or alternative text.
Common workflows
Several tools may be needed, but the order matters
Perform the most structural change first and the final-delivery controls last. This reduces repeated processing and makes errors easier to trace.
Organize → OCR → Compress → Protect
Put pages in order, recognize the text, reduce delivery size only after the scan is readable, then protect the tested final copy.
Merge → Review → Compress
Assemble the approved versions, check section boundaries and duplicates, then create a smaller delivery copy if necessary.
Split → Inspect → Protect
Extract only the authorized pages, review them for remaining sensitive information, then apply access protection if required.
Convert → Edit → Export → Verify
Move to an editable format, make the changes, export a fresh PDF, and compare the full result with the intended final record.
Before and after
Two checks every tool page shares
Know which file you selected
- Open the exact source file and confirm its version.
- Check whether online processing is permitted.
- Remove unnecessary pages and information.
- Keep an untouched master copy.
- Check the browser processing notice and file size limit beside the tool.
Prove that the result is usable
- Open the downloaded file outside the browser preview.
- Confirm page count, order, orientation, and readability.
- Search or copy a sample when OCR was used.
- Test passwords, links, forms, and signatures where relevant.
- Use a clear final filename and retain the source until delivery is confirmed.
Tool selection questions
Questions worth answering before you upload
Should I compress before editing?
Usually not. Complete page and content changes first, then compress the final delivery copy. Repeated compression can reduce quality unnecessarily.
Should I use OCR or conversion?
Use OCR when the PDF is an image and you need searchable text. Use conversion when you need another file format. A scanned PDF may require OCR before conversion can recover useful text.
Can organizing pages break links or signatures?
It can. Internal links may point to changed destinations, bookmarks may need rebuilding, and certificate-based signatures may become invalid after structural changes.
Does password protection stop copying?
An opening password restricts access until the correct password is entered. Permission restrictions after opening depend on reader software and should not be treated as an absolute barrier.
Can I delete the source after downloading the result?
Keep the source until the result has been opened, checked, delivered, and accepted. Important records may also require retention under your own policy.
Where does my PDF go?
The current tools process selected PDFs locally in your browser. PDFNexa does not receive or retain the file. Check the limits and output details beside the workspace before starting.
Name the problem before choosing the tool
If you cannot describe the required result in one sentence, return to the source document and recipient’s requirements. The safest operation is usually the smallest one that produces the agreed result.