Help center

Upload issues

Use a supported PDF. If the upload fails, try a smaller file, ensure the file is not password-protected in a way the tool cannot open, and check your network. On some cloud hosts, very large request bodies (on the order of tens of MB) may hit platform limits—compress the PDF or use a direct API path if your deployment configures one.

Download issues

After processing, use your browser’s download prompt. If nothing downloads, disable pop-up blockers for this site and retry. If the server returns an error, note the message and try again with a smaller file.

File size limits

Limits depend on server configuration and hosting. If you hit a size or timeout error, compress the PDF, split it, or reduce embedded images. See also our homepage FAQ for general context.

Privacy questions

Read the privacy policy for how uploads are processed and retained. Only process documents you are allowed to use.

Browser support

Use a current version of Chrome, Firefox, Safari, or Edge. Enable JavaScript. Private/incognito mode may affect extensions or storage—if something fails, try a standard window.

Tool-specific guides

Open a tool from the full catalog. Each live page includes steps, limits, and an FAQ section. Suggested starting point: Add signature to PDF.

• Add signature to PDF — Use this page to place a handwritten or image signature on a PDF and download a new file—optimized for people searching specifically for signature workflows.
• Add stamp to PDF — This page targets stamp workflows: official seals, approval stamps, or round images you want repeated consistently across PDF pages using the same placement tools as signatures.
• Add logo to PDF — Optimized for branding tasks: place a company or product logo image on PDF pages with the same placement and multi-page controls as signatures and stamps.
• Batch stamp PDF — Focused on high-volume page coverage: one upload, one stamp placement pattern, then apply across many pages at once—ideal when “batch” is how you think about the job.
• Stamp PDF multiple pages — Written for searches about partial coverage—when you need a stamp on several pages but not necessarily the whole file.
• Apply stamp to all pages PDF — Targets whole-document intent: one stamp placement applied across every page in the file—common for approvals, confidentiality marks, and branding bars.
• Compress PDF — Shrink PDFs with server-side compression—pick a balance of size and quality.
• Alternate and mix PDFs — Mix pages from two or more PDFs with per-file take counts and order controls.
• Delete PDF pages — Remove unwanted pages and download a new PDF with the rest intact.
• Extract pages from PDF — Pull specific pages or ranges into a new PDF with a live page picker.
• Merge PDFs — Combine multiple PDFs into one file in the order you choose.
• N-up PDF — Fit 2, 4, or 8 pages per sheet with clear layout presets.
• Organize PDF pages — Reorder, rotate, and remove pages in one visual workspace.
• Split PDF — Divide a PDF into multiple files by ranges, every N pages, or cut points.
• PDF to Excel — Extract detected tables from a PDF into an editable Excel workbook.
• PDF to JPG — Convert PDF pages to JPG images with Low, Medium, or High quality.
• PDF to PowerPoint — Turn PDF pages into a PowerPoint deck—one image slide per page.
• PDF to text — Extract selectable text from a PDF into a UTF-8 .txt file.
• PDF to Word — Convert a PDF into an editable Word (.docx) file with honest layout limits.
• HTML to PDF — Convert an HTML file to PDF with LibreOffice—not a Chrome print.
• JPG to PDF — Pack JPEG images into a single PDF—reorder, pick A4 or Letter, download.
• Word to PDF — Convert a Word (.docx) file to PDF with LibreOffice—honest layout limits.
• Protect PDF — Add an open password and optional print/copy/edit restrictions—not DRM.
• Unlock PDF — Remove a PDF password you already know—we do not guess or crack files.
• Watermark PDF — Add DRAFT, CONFIDENTIAL, or custom text on every page—opacity, rotation, or a tiled grid.
• Bates numbering for PDF — Stamp sequential IDs on every page with a prefix, starting number, padding, and corner.
• Create PDF bookmarks — Build a nested outline so readers can jump to chapters from the bookmarks pane.
• Crop PDF — Trim margins or isolate a region—drag a box and download smaller pages.
• Edit PDF metadata — Change title, author, subject, keywords, creator, and producer in the PDF Info dictionary.
• Edit PDF — Add text, place an image, cover part of a page, or replace a line of existing text.
• Extract images from PDF — Pull embedded photos and diagrams out of a PDF—preview, download one, or ZIP all.
• Flatten PDF — Bake form fields and supported annotations into static page content for print-ready PDFs.
• Grayscale PDF — Convert color PDFs to grayscale for cheaper printing.
• Header and footer for PDF — Add running header and footer text with page, date, and title tokens.
• Page numbers for PDF — Add page numbers with position, Arabic or Roman, a prefix, and skip-cover.
• Remove annotations from PDF — Strip comments, highlights, ink, and stamps without changing page content or form fields.
• Rename PDF — Download a PDF under a new filename without changing the file inside.
• Resize PDF — Fit pages onto A4, Letter, Legal, A3, or A5 without stretching.
• Rotate PDF — Turn pages 90°, 180°, or 270° clockwise—whole file, a range, or selected pages.
• Create PDF forms — Add fillable text fields, checkboxes, and radio buttons on a page preview.
• Fill and sign PDF — Type into existing form fields and place a signature image in one session.
• OCR PDF — Add a searchable text layer to scanned pages without rebuilding the layout.
• Deskew PDF — Straighten slightly tilted scanned pages, each page on its own.
• Repair PDF — Rebuild a damaged PDF structure when the file can still be recovered.
• PDF workflows — Save an ordered sequence of PDF tools and run it again on the next file.