Merge ODD to PDF

How to Merge ODD Files to PDF Online

1. Add Your ODD Files: Click "+ Add Files" or drag and drop. Drop in two or more .odd drawings; reorder by dragging the thumbnails so the first file becomes the first PDF page.
2. Choose Combine Mode: Under "Combine?" pick "Single PDF" (default — one PDF with one page per drawing) or "Individual PDFs" (one PDF per ODD, returned as a ZIP).
3. Set Page Layout (Optional): Pick "Page layout" (Portrait default, or Landscape for wide diagrams), "Paper size" (A4 default; Letter, Legal, A3, Tabloid, Ledger, ARCH A/B, B4/B5, Executive, or "Original" to keep each drawing's native size), and "Margin" — No margin (0"), Narrow (0.5", default), Moderate (0.75x1"), Normal (1"), or Large (2x1").
4. Set Image Placement and Compression (Optional): Pick "Image placement" Cover (fill page, may crop) or Contained (fit within margins, default). Set "Image alignment" Top, Center (default), or Bottom. Tune "Image Compression > Image Quality (%)" (default 75) and "Compression Type" Screen (smallest), Ebook, Default, Prepress, or Printer (largest, sharpest). Use "Image Transparency" Removed to flatten alpha onto white. Click "Merge" and download.

What is an ODD File?

The .odd extension is uncommon and ambiguous. There is no ISO-standardized "ODD" file format. The Library of Congress and OASIS define OpenDocument Drawing as .odg (MIME application/vnd.oasis.opendocument.graphics, ISO 26300-1:2015) — that is the canonical vector-drawing format produced by LibreOffice Draw and Apache OpenOffice Draw. If your file came out of LibreOffice Draw and ends in .odd, it is almost certainly an ODG file with a non-standard extension; renaming it to .odg is often enough to open it in Draw.

In the wider wild, .odd has been documented as Coby Voice Recorder audio data, TEI ODD ("One Document Does it all") XML schema specifications, Oracle Database Diagram files, and assorted game-mod payloads. Those are not images and will not render through this tool. xconvert's merge pipeline accepts files with the .odd extension and treats them as image inputs — so it works for raster or vector drawings shipped with that extension, including renamed ODG exports and image data saved with .odd by older or niche tools. Each accepted file becomes one page in the combined PDF.

• Standardize ad-hoc OpenDocument exports — Some legacy templates, older OpenOffice builds, or in-house export scripts wrote drawings with .odd instead of .odg. Merge them straight to PDF without first renaming and re-saving.
• Distribute diagrams to non-OpenDocument users — PDF opens everywhere (Chrome, Edge, Safari, Adobe Reader, Preview, every mobile browser); ODD/ODG needs LibreOffice, OpenOffice, or an importer plugin.
• Bundle a drawing series into one document — Combine related diagrams, floor-plan revisions, or flowchart sets into a single deliverable instead of attaching N separate files to email.
• Lock layout for review — Draw documents reflow on screen depending on Draw version and font availability. Flatten to PDF and reviewers see exactly what you exported.
• Archive at fixed quality — Pick Prepress or Printer compression and you get a 300 DPI-ready PDF you can hand off to a print shop or store as a long-term record.
• Keep originals private — Files are processed in your browser session and removed shortly after; no account, no watermark, no public share link.

ODD vs ODG vs PDF — Format Comparison

Compression Type Quick Guide

The "Compression Type" preset maps to a Ghostscript profile that controls embedded-image downsampling and font handling. Pick based on where the PDF will be viewed.

Pair the preset with "Image Quality (%)" — at Screen/Ebook a quality of 60-75 is fine; at Prepress/Printer push to 85-95 to avoid JPEG artifacts in line art.

Frequently Asked Questions

Is ODD the same as ODG?

No — and that is the most useful thing to know. ODG is the OpenDocument Drawing format defined by OASIS and standardized as ISO/IEC 26300. ODD is not a recognized standard. If your file came from LibreOffice Draw or OpenOffice Draw, it is almost certainly an ODG that was named or saved with the wrong extension. Renaming .odd to .odg will usually let Draw open it directly. If you specifically need ODG, see Merge ODG to PDF.

My .odd file does not look like a drawing — what could it be?

Other documented uses of the .odd extension include Coby Voice Recorder audio data (a now-discontinued portable recorder line), TEI ODD ("One Document Does it all") XML schema specifications used in academic text encoding, Oracle Database Diagram files, and various game-mod data files. These are not images and will not produce a usable PDF page through this tool. Open the file in a hex viewer or text editor: an OpenDocument-style ODD starts with PK (a ZIP header), TEI ODD looks like XML, and audio-recorder ODD is binary data with a header signature.

My ODD will not open in LibreOffice Draw — what do I do?

First try renaming the file to .odg — that handles the vast majority of mislabeled OpenDocument exports. If LibreOffice still refuses, the file is probably not OpenDocument Drawing at all (see the question above). If you only need a PDF and not an editable drawing, upload it here; xconvert's image pipeline will attempt to render it and merge it into a PDF as long as the byte stream is one of the supported raster or vector formats.

Can I merge ODD files with images of other formats in one PDF?

Yes. The merge tool accepts mixed image inputs in a single batch. If you also have JPGs, PNGs, or PDFs to combine, Merge Image to PDF is the format-agnostic entry point and accepts the same option set (Combine?, Margin, Paper size, Page layout, Image placement, Image alignment, Image Compression, Compression Type).

How do I keep each ODD as its own PDF instead of combining them?

Set "Combine?" to "Individual PDFs." You'll get one PDF per input file, returned together as a ZIP. Useful when you're batch-converting an archive of drawings rather than authoring a single document. The page-layout and compression options apply to every file in the batch.

What paper size should I pick — A4 or Original?

If your drawings were authored on a uniform canvas (slides, posters, A-sized templates) and you want a tidy printable PDF, pick a fixed preset (A4, Letter, A3, Tabloid). If your drawings have varied native sizes — say, a mix of square diagrams and wide flowcharts — pick "Original" so each PDF page sizes itself to the drawing and you avoid Cover cropping or excessive whitespace. Then enable Landscape if most drawings are wider than tall.

Will vector content stay sharp after merging?

The pipeline rasterizes drawings into the PDF as embedded images, not as live PDF vectors. So sharpness depends on Compression Type and Image Quality (%): Prepress or Printer at 85-95 quality looks crisp at 100% zoom and prints clean. If you need true vector preservation, export the source ODG to PDF directly from LibreOffice Draw (File > Export As > Export as PDF) — that path keeps line work as PDF vector ops.

Does xconvert keep my ODD files?

Files are processed in your browser session and removed from xconvert's edge servers shortly after the conversion completes. No account is required, no watermark is added, and the merged PDF is not stored on a public URL. If you want to convert a single ODD to a still image instead of a multi-page PDF, see Convert ODD to PNG or Convert ODD to JPG.

Why does my merged PDF look bigger or smaller than expected?

Three knobs drive output size: Compression Type (Screen smallest, Printer largest), Image Quality (%) (lower = smaller, default 75), and Image Transparency (Removed flattens alpha, slightly smaller and more compatible). If your PDF is unexpectedly large, drop Compression Type to Ebook or Screen and lower Image Quality to 60-70. If it's unexpectedly small and looks soft, raise to Prepress and bump Quality to 90.