View and add PDF bookmarks
A clickable table of contents
Up to 200 MB at a time. On a phone, large documents take longer and need more memory.
Keep the original. Editing a PDF can invalidate a digital signature, and special features, forms and bookmarks may not carry over to the new file.
Choose a PDF or drop it here Choose PDF files or drop them here Choose JPG, PNG or WebP images or drop them here Up to 200 MB at a time. On a phone, large documents take longer and need more memory. Working… Processing page {n} of {total}… Done. Download your file. Choose a file first. The selected files are over 200 MB. Pick a smaller file or fewer files. “{name}” is empty. Choose another file. “{name}” is not a PDF. Choose a PDF document. “{name}” is not a JPG, PNG or WebP image. Choose a supported format. This PDF is password-protected. Open it in a program where you have access, save a copy without the password and try again. Not enough memory for this job. Choose a smaller file, a lower resolution or fewer pages. The processing library didn't load. Refresh the page and choose the file again. This file can't be processed. It may be damaged or use an unsupported encoding. Save a fresh copy and try again. The PDF has no pages to process. Enter pages from 1 to {count}, for example 1-3,5. The end of a range can't be lower than its start. The result would use too much memory. Choose fewer pages or a lower resolution. “{name}” is too large to process in the browser. Resize it to 16 megapixels at most and no more than 10,000 pixels on the longer side. Download {name} Move up Move down Remove Page {n} Pages: {n} Loaded: {name}. Pages: {n}. Order updated. Download the new file when you've finished. Can't show a preview of page {n}. Choose just one PDF file here. Add at least two PDF files to merge. Keep at least one page. Pages (leave empty for all pages) For example 1-3,5,8-10. The first page is page 1. Bring back all pages Drag to change the order, or use the arrow buttons. Remove anything you don't want in the result. JPEG quality Smaller file (55%) Medium quality (75%) Better quality (90%) Image resolution 96 dpi 144 dpi 200 dpi To keep things stable on phones, each image is capped at 4 megapixels. Larger pages get a lower resolution automatically. Keep the original. Editing a PDF can invalidate a digital signature, and special features, forms and bookmarks may not carry over to the new file. Before: {before}. After: {after}. {percent}% smaller. Before: {before}. After: {after}. The new file isn't any smaller. If you don't need other changes, keep the original. Enter margins between 0 and 40 mm. Images selected: {n}. Save PDF Rotation from the original 90° clockwise 180° 270° clockwise (90° anticlockwise) Choose PDF file Turn on JavaScript in your browser to process files. Settings changed. Run it again. Selected document Preview before you download Keep working on this file File for the next step Next step Continue Delete temporary files Temporary transfer files deleted. The file is kept for a short time in this browser only. It's deleted as soon as the next tool picks it up, or on your next visit after 15 minutes at the latest. Passing files between tools doesn't work in this browser. Download the result and choose it in the next tool. The transfer has expired, was already used or isn't available. Choose the file from your device. Compress PDF Merge PDF Rotate PDF Extract pages Insert pages Crop margins Change page size Pages per sheet Merge fronts and backs Remove blank pages Add page numbers Header & Bates numbering Add a watermark Convert to greyscale Flatten forms and comments Edit metadata Edit bookmarks Split by size or bookmarks Split by page ranges Convert to JPG Delete or reorder pages Check the values you entered. Numbers must be within the range shown. Type the text you want to add. Choose the second file too. Choose two PDF files for this. Find blank pages Tick the pages to remove. Look at each one before you confirm. No blank pages found. You can still tick pages to remove by hand. Possibly blank This page has content Remove page {n} Each line should read: page number | title. The page must exist in the document. The document has no bookmarks pointing to pages. You can add them with the Bookmarks tool. You can't remove every page. Keep at least one. Files loaded: {n}. Second file Choose another file Number position Bottom centre Top centre Pages are turned into images of up to 144 dpi (4 megapixels per page at most). Searchable text, links, bookmarks and fillable forms don't carry over. Check the preview first. Keep the original. Layout and content stay visible, but forms, links and comments are dropped when pages are combined. Digital signatures stop being valid. New list: page number | title Current bookmarks Result page Previous Next Done. The source had forms, links or comments, so the pages were turned into images to keep how they look. Text search and interactive features don't carry over. Merge the images into a PDF Sign PDF Fill in a form Edit PDF Redact data permanently Protect with a password Remove a known password Repair PDF Convert to PDF/A Save the PDF tools for offline use Saving the PDF pages and programs, including OCR languages and the Office add-on (about 110 MB). Your documents are not stored in this cache. The PDF tools are saved for offline use in this browser. Passwords and documents are not in the cache. The browser may clear the cache later to free up space. Saving for offline use didn't work. Check your connection and free space; downloading results still works. Recognise text (OCR) Extract text Convert to Word Extract tables for Excel Convert to PowerPoint Extract images Compare PDF files Convert to PNG or WebP This browser can't save the chosen image format. Choose PNG and try again.Word back to PDFExcel back to PDFPowerPoint back to PDFAdvanced settingsCancelCancelled. You can try again.Start over← Change settings+ Add moreDone: {name} is readyPreviewKeep working on this fileRecognise text on scanned pagesLanguage of the scanned textFind sensitive dataCheck the suggestions and untick anything you want to keep.No sensitive data found.By bookmarksBy textEvery N pagesText that starts a new partPages per partpotpisi-pdf,zastiti-pdf,kompresuj-pdf,spoji-pdf,rotiraj-pdf,podeli-pdfResize; use the arrow keys for fine adjustmentThe file stays on your device. No sign-up.ImportantClose previewChoose a PDF fileChoose PDF filesSelect all pagesKey sentencesAll PDF toolsChoose another fileYour file stays on your device. No sign-up, no limits.
PDF bookmarks are the headings in the side panel of a PDF reader; click one and you jump to that page. Here you can see the existing ones and write a new list, one line each: page number, a vertical bar, then the title. Saving replaces the old list with a single flat level. The pages themselves don't change.
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How it works
On a UK or US keyboard the vertical bar is Shift plus the backslash key. The page number has to exist in the document, or the tool tells you which line is wrong. Press “Save PDF” when the list is ready.
Worked example
The staff handbook runs to 40 pages and has no contents page, so finding anything is a chore. Type three lines:
1 | General terms
9 | Working hours
23 | Annual leave
After saving, those headings sit in the side panel and take you straight to each section.
Questions people ask
Does this add a contents page?
No. Bookmarks show in the reader's side panel, not on the page itself.
What happens to nested bookmarks?
The preview shows them, but saving creates a new flat list. If you need the old structure, keep the original.
How do I remove all bookmarks from a PDF?
Clear the box and save a new copy. The pages stay exactly the same.
Why can't I see the bookmarks after saving?
Many readers hide the side panel by default. In Adobe Reader, open the bookmarks icon on the left; in Chrome, open the outline from the menu at the top left of the viewer.
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Updated: 13 November 2026